ZHCSS37J 数据表 | 德州仪器 TI.com.cn

ZHCSS37J may 2009 – january 2021 XIO2001

PRODUCTION DATA

封装选项

机械数据 (封装 | 引脚)

PNP|128
- MPQF060E
ZWS|169
- MPBGAK4B
ZAJ|144
- MPBG878A

散热焊盘机械数据 (封装 | 引脚)

PNP|128
- PPTD154D

订购信息

Pin Descriptions

The following list describes the different input/output cell types that appear in the pin function tables:

HS DIFF IN = High speed differential input
HS DIFF OUT = High speed differential output
PCI BUS = PCI bus tri-state bidirectional buffer with 3.3-V or 5.0-V clamp rail.
LV CMOS = 3.3-V low voltage CMOS input or output with 3.3-V clamp rail
BIAS = Input/output terminals that generate a bias voltage to determine a driver's operating current
Feed through = These terminals connect directly to macros within the part and not through an input or output cell.
PWR = Power terminal
GND = Ground terminal

Pin Functions

SIGNAL	ZWS BALL NO.	ZAJ BALL NO.	PNP PIN NO.	I/O TYPE	EXTERNAL PARTS	DESCRIPTION
POWER SUPPLY
PCIR	A01, K03	D03, J03	2, 27	I/O	Resistor	PCI Rail. 5.0-V or 3.3-V PCI bus clamp voltage to set maximum I/O voltage tolerance of the secondary PCI bus signals. Connect each one of these terminals to the secondary PCI bus I/O clamp rail through a 1kΩ resistor.
V_{DD_15}	G04, K07, D07, H10, G10	J08, H08, J07, G08, K13, G11	21, 53, 113	PWR	Bypass capacitors	1.5-V digital core power terminals
V_{DD_15_PLL}	F10	F11	84	PWR	Pi filter	1.5-V power terminal for internal PLL. This terminal must be isolated from analog and digital power.
V_{DDA_15}	F13, H13	E12, H12	76, 78, 83, 85	PWR	Pi filter	1.5-V analog power terminal
V_{DD_33}	E04, H03, J04, L08, K09, D09, C07, D05, J12	E05, G06, H07, G07, H06, F08, F07, F06, J11	7, 19, 33, 46, 62, 100, 111, 126	PWR	Bypass capacitors	3.3-V digital I/O power terminal
V_{DD_33_AUX}	J11	J12	73	PWR	Bypass capacitors	3.3-V auxiliary power terminal Note: This terminal is connected to V_SS through a pulldown resistor if no auxiliary supply is present.
V_{DDA_33}	D13	C12	74, 92	PWR	Pi filter	3.3-V analog power terminal
GROUND
V_SS	D04, F04, H04, K04, K05, K06, K08, L11, J10, D10, D08, D06, F11, F12	E06, F05, G05, H05, J05, J06, J09, H09, E09, E08, E07, F12 ,F09		GND	Digital ground terminals
V_SS	E05, E06, E07, E08, E09, F05, F06, F07, F08, F09, G05, G06, G07, G08, G09, H05, H06, H07, H08, H09, J05, J06, J07, J08, J09			GND	Ground terminals for thermally-enhanced package
V_SSA	K10, C11, H12, G11, E11, E10	G09, B12, J13, G12, F13, D12	79, 82, 86, 89	GND	Analog ground terminal
COMBINED POWER OUTPUT
V_{DD_15_COMB}	L13	N13	69	Feed through	Bypass capacitors	Internally-combined 1.5-V main and V_AUX power output for external bypass capacitor filtering. Supplies all internal 1.5-V circuitry powered by V_AUX. Caution: Do not use this terminal to supply external power to other devices.
V_{DD_33_COMB}	J13	K12	75	Feed through	Bypass capacitors	Internally-combined 3.3-V main and V_AUX power output for external bypass capacitor filtering. Supplies all internal 3.3-V circuitry powered by V_AUX. Caution: Do not use this terminal to supply external power to other devices.
V_{DD_33_COMBIO}	K11	K11	70	Feed through	Bypass capacitors	Internally-combined 3.3-V main and V_AUX power output for external bypass capacitor filtering. Supplies all internal 3.3-V input/output circuitry powered by V_AUX. Caution: Do not use this terminal to supply external power to other devices.

Pin Functions

SIGNAL	ZWS BALL NO.	ZAJ BALL NO.	PNP PIN NO.	I/O TYPE	CELL TYPE	CLAMP RAIL	EXTERNAL PARTS	DESCRIPTION
PCI EXPRESS
CLKREQ	D11	D11	91	0	LV CMOS	V_{DD_33_ COMBIO}	–	Clock request. When asserted low, requests upstream device start clock in cases where clock may be removed in L1. Note: Since CLKREQ is an open-drain output buffer, a system side pullup resistor is required.
PERST	H11	H11	77	I	LV CMOS	V_{DD_33_ COMBIO}	–	PCI Express reset input. The PERST signal identifies when the system power is stable and generates an internal power on reset. Note: The PERST input buffer has hysteresis.
REFCLK125_SEL	B13	A13	95	I	LV CMOS	V_{DD_33}	Pullup or pulldown resistor	Reference clock select. This terminal selects the reference clock input. 0 = 100-MHz differential common reference clock used. 1 = 125-MHz single-ended, reference clock used.
REFCLK+	C13	C13	93	DI	HS DIFF IN	V_{DD_33}	–	Reference clock. REFCLK+ and REFCLK– comprise the differential input pair for the 100-MHz system reference clock. For a single-ended, 125-MHz system reference clock, use the REFCLK+ input.
REFCLK–	C12	B13	94	DI	HS DIFF IN	V_{DD_33}	Capacitor for V_SS for single-ended node	Reference clock. REFCLK+ and REFCLK– comprise the differential input pair for the 100-MHz system reference clock. For a single-ended, 125-MHz system reference clock, attach a capacitor from REFCLK– to V_SS.
REF0_PCIE REF1_PCIE	K12 K13	M13 L13	71 72	I/O	BIAS	–	External resistor	External reference resistor + and – terminals for setting TX driver current. An external resistance of 14,532-Ω is connected between REF0_PCIE and REF1_PCIE terminals. To eliminate the need for a custom resistor, two series resistors are recommended: a 14.3-kΩ, 1% resistor and a 232-Ω, 1% resistor.
RXP RXN	E13 E12	E13 D13	87 88	DI	HS DIFF IN	V_SS	–	High-speed receive pair. RXP and RXN comprise the differential receive pair for the single PCI Express lane supported.
TXP TXN	G13 G12	H13 G13	80 81	DO	HS DIFF OUT	V_{DD_15}	Series capacitor	High-speed transmit pair. TXP and TXN comprise the differential transmit pair for the single PCI Express lane supported.
WAKE	M13	L12	68	O	LV CMOS	V_{DD_33_ COMBIO}	–	Wake is an active low signal that is driven low to reactivate the PCI Express link hierarchy’s main power rails and reference clocks. Note: Since WAKE is an open-drain output buffer, a system side pullup resistor is required.
PCI SYSTEM
AD31 AD30 AD29 AD28 AD27 AD26 AD25 AD24 AD23 AD22 AD21 AD20 AD19 AD18 AD17 AD16 AD15 AD14 AD13 AD12 AD11 AD10 AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0	N05 N04 L05 M05 N03 M04 N02 M03 L04 M02 L03 M01 L02 L01 K02 K01 E01 E02 E03 D01 D02 C01 C02 D03 C03 B02 C04 A02 B03 B04 A03 C05	N05 L05 M05 N04 N03 L04 M04 N02 L03 M02 N01 L02 K02 M01 K03 L01 F02 E03 E01 E02 D01 C01 D02 B01 A01 B03 C03 A02 A03 C04 C05 B04	44 43 42 41 40 39 38 37 35 34 32 31 30 29 28 26 12 11 10 9 8 6 5 4 1 128 127 125 124 123 122 121	I/O	PCI Bus	PCIR	–	PCI address data lines
C/BE[3] C/BE[2] C/BE[1] C/BE[0]	N01 J03 F02 B01	M03 K01 F03 C02	36 25 14 3	I/O	PCI Bus	PCIR	–	PCI command byte enables
CLK	F03	F01	13	I	PCI Bus	PCIR	–	PCI clock input. This is the clock input to the PCI bus core.
CLKOUT0 CLKOUT1 CLKOUT2 CLKOUT3 CLKOUT4 CLKOUT5 CLKOUT6	B05 B06 A07 B07 A09 A10 B11	B05 B06 B07 A07 A08 A10 C10	120 117 114 112 107 104 99	O	PCI Bus	PCIR	–	PCI clock outputs. These clock outputs are used to clock the PCI bus. If the bridge PCI bus clock outputs are used, then CLKOUT6 must be connected to the CLK input.
DEVSEL	H02	H02	20	I/O	PCI Bus	PCIR	Pullup resistor per PCI spec	PCI device select
FRAME	J02	J01	24	I/O	PCI Bus	PCIR	Pullup resistor per PCI spec	PCI frame
GNT5 GNT4 GNT3 GNT2 GNT1 GNT0	B10 A11 B09 B08 C06 A05	B11 B10 B09 B08 A06 A05	101 103 106 109 115 118	O	PCI Bus	PCIR	–	PCI grant outputs. These signals are used for arbitration when the PCI bus is the secondary bus and an external arbiter is not used. GNT0 is used as the REQ for the bridge when an external arbiter is used.
INTA INTB INTC INTD	M06 N06 M07 L07	N06 L06 M07 N07	47 48 49 50	I	PCI Bus	PCIR	Pullup resistor per PCI spec	PCI interrupts A–D. These signals are interrupt inputs to the bridge on the secondary PCI bus.
IRDY	J01	H03	23	I/O	PCI Bus	PCIR	Pullup resistor per PCI spec	PCI initiator ready
LOCK	M08	N08	54	I/O	PCI Bus	PCIR	Pullup resistor per PCI spec	This terminal functions as PCI LOCK Note: In lock mode, an external pullup resistor is required to prevent the LOCK signal from floating.
M66EN	L06	M06	45	I	PCI Bus	PCIR	Pullup resistor per PCI spec	66-MHz mode enable 0 = Secondary PCI bus and clock outputs operate at 33 MHz. If PCLK66_SEL is low then the frequency will be 25 MHz. 1 = Secondary PCI bus and clock outputs operate at 66 MHz. If PCLK66_SEL is low then the frequency will be 50 MHz.
PAR	F01	G01	15	I/O	PCI Bus	PCIR	–	PCI bus parity
PERR	G02	G03	17	I/O	PCI Bus	PCIR	Pullup resistor per PCI spec	PCI parity error
PME	L12	M12	67	I	LV CMOS	V_{DD_33_ COMBIO}	Pullup resistor per PCI spec	Pullup resistor per PCI spec PCI power management event. This terminal may be used to detect PME events from a PCI device on the secondary bus. Note: The PME input buffer has hysteresis.
REQ5 REQ4 REQ3 REQ2 REQ1 REQ0	A12 C09 C08 A08 A06 A04	C09 A09 C08 C07 C06 A04	102 105 108 110 116 119	I	PCI Bus	PCIR	If unused, a weak pullup resistor per PCI spec	PCI request inputs. These signals are used for arbitration on the secondary PCI bus when an external arbiter is not used. REQ0 is used as the GNT for the bridge when an external arbiter is used.
PRST	N07	L07	51	O	PCI Bus	PCIR	–	PCI reset. This terminal is an output to the secondary PCI bus.
SERR	G03	G02	16	I/O	PCI Bus	PCIR	Pullup resistor per PCI spec	PCI system error
STOP	G01	H01	18	I/O	PCI Bus	PCIR	Pullup resistor per PCI spec	PCI stop
TRDY	H01	J02	22	I/O	PCI Bus	PCIR	Pullup resistor per PCI spec	PCI target ready
JTAG
JTAG_TCK	M12	N12	65	I	LV CMOS	V_{DD_33}	Optional pullup resistor	JTAG test clock input. This signal provides the clock for the internal TAP controller. Note: This terminal has an internal active pullup resistor. The pullup is active at all times. Note: This terminal should be tied to ground or pulled low if JTAG is not required.
JTAG_TDI	N12	L10	63	I	LV CMOS	V_{DD_33}	Optional pullup resistor	JTAG test data input. Serial test instructions and data are received on this terminal. Note: This terminal has an internal active pullup resistor. The pullup is active at all times. Note: This terminal can be left unconnected if JTAG is not required.
JTAG_TDO	M11	N11	61	O	LV CMOS	V_{DD_33}	–	JTAG test data output. This terminal the serial output for test instructions and data. Note: This terminal can be left unconnected if JTAG is not required.
JTAG_TMS	L10	L11	64	I	LV CMOS	V_{DD_33}	Optional pullup resistor	JTAG test mode select. The signal received at JTAG_TMS is decoded by the internal TAP controller to control test operations. Note: This terminal has an internal active pullup resistor. The pullup is active at all times. Note: This terminal can be left unconnected if JTAG is not required.
JTAG_TRST	L09	L09	60	I	LV CMOS	V_{DD_33}	Optional pullup resistor	JTAG test reset. This terminal provides Optional for asynchronous initialization of the TAP controller. Note: This terminal has an internal active pullup resistor. The pullup is active at all times. Note: This terminal should be tied to ground or pulled low if JTAG is not required.

Miscellaneous Pins

SIGNAL	ZWS BALL NO.	ZAJ BALL NO.	PNP PIN NO.	I/O TYPE	CELL TYPE	CLAMP RAIL	EXTERNAL PARTS	DESCRIPTION
CLKRUN_ EN	A13	C11	96	I	LV CMOS	V_{DD_33}	Optional pullup/ pulldown resistor	Clock run enable 0 = Clock run support disabled 1 = Clock run support enabled
EXT_ARB_EN	C10	A12	97	I	LV CMOS	V_{DD_33}	Optional pullup/ pulldown resistor	External arbiter enable 0 = Internal arbiter enabled 1 = External arbiter enabled
GPIO0 // CLKRUN	N09	N09	55	I/O	LV CMOS	V_{DD_33}	Optional pullup resistor	General-purpose I/O 0/clock run. This terminal functions as a GPIO controlled by bit 0 (GPIO0_DIR) in the GPIO control register (see Section 8.4.60) or the clock run terminal. This terminal is used as clock run input when the bridge is placed in clock run mode. Note: In clock run mode, an external pullup resistor is required to prevent the CLKRUN signal from floating. Note: This terminal has an internal active pullup resistor. The pullup is only active when reset is asserted or when the GPIO is configured as an input.
GPIO1 // PWR_ OVRD	M09	M09	56	I/O	LV CMOS	V_{DD_33}	–	General-purpose I/O 1/power override. This terminal functions as a GPIO controlled by bit 1 (GPIO1_DIR) in the GPIO control register (see Section 8.4.60) or the power override output terminal. GPIO1 becomes PWR_OVRD when bits 22:20 (POWER_OVRD) in the general control register are set to 001b or 011b (see Section 8.4.66). Note: This terminal has an internal active pullup resistor. The pullup is only active when reset is asserted or when the GPIO is configured as an input.
GPIO2	N10	N10	57	I/O	LV CMOS	V_{DD_33}	–	General-purpose I/O 2. This terminal functions as a GPIO controlled by bit 2 (GPIO2_DIR) in the GPIO control register (see Section 8.4.60). Note: This terminal has an internal active pullup resistor. The pullup is only active when reset is asserted or when the GPIO is configured as an input.
GPIO3 // SDA	N11	L08	58	I/O	LV CMOS	V_{DD_33}	Optional pullup resistor	GPIO3 or serial-bus data. This terminal functions as serial-bus data if a pullup resistor is detected on SCL or when the SBDETECT bit is set in the Serial Bus Control and Status Register (see Section 8.4.59). If no pullup is detected then this terminal functions as GPIO3. Note: In serial-bus mode, an external pullup resistor is required to prevent the SDA signal from floating.
GPIO4 // SCL	M10	M10	59	I/O	LV CMOS	V_{DD_33}	Optional pullup resistor	GPIO4 or serial-bus clock. This terminal functions as serial-bus clock if a pullup resistor is detected on SCL or when the SBDETECT bit is set in the Serial Bus Control and Status Register (see Section 8.4.59). If no pullup is detected then this terminal functions as GPIO4. Note: In serial-bus mode, an external pullup resistor is required to prevent the SCL signal from floating. Note: This terminal has an internal active pullup resistor. The pullup is only active when reset is asserted or when the GPIO is configured as an input.
GRST	N13	M11	66	I	LV CMOS	V_{DD_33} _{_COMBIO}	–	Global reset input. Asynchronously resets all logic in device, including sticky bits and power management state machines. Note: The GRST input buffer has both hysteresis and an internal active pullup. The pullup is active at all times.
PCLK66_ SEL	B12	A11	98	I	LV CMOS	V_{DD_33}	Optional pulldown resistor	PCI clock select. This terminal determines the default PCI clock frequency driven out the CLKOUTx terminals. 0 = 50 MHz PCI Clock 1 = 66 MHz PCI Clock Note: This terminal has an internal active pullup resistor. This pullup is active at all times. Note: M66EN terminal also has an affect of PCI clock frequency.
SERIRQ	N08	M08	52	I/O	PCI Bus	PCIR	Pullup or pulldown resistor	Serial IRQ interface. This terminal functions as a serial IRQ interface if a pullup is detected when PERST is deasserted. If a pulldown is detected, then the serial IRQ interface is disabled.
VREG_ PD33	D12	E11	90	I	LV CMOS	V_{DD_33} _{_COMBIO}	Pulldown resistor	3.3-V voltage regulator powerdown. This terminal should always be tied directly to ground or an optional pulldown resistor can be used.