ZHCSNH4B 数据表 | 德州仪器 TI.com.cn

ZHCSNH4B august 2020 – july 2023 DLP471TP

PRODUCTION DATA

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机械数据 (封装 | 引脚)

FQQ|270
- MCLG038A

散热焊盘机械数据 (封装 | 引脚)

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6.8 Timing Requirements

Over operating free-air temperature range and supply voltages (unless otherwise noted)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
LVCMOS
t_r	Rise time⁽¹⁾	20% to 80% reference points			25	ns
t_f	Fall time⁽¹⁾	80% to 20% reference points			25	ns
LOW SPEED INTERFACE (LSIF)
t_r	Rise time⁽²⁾	20% to 80% reference points			450	ps
t_f	Fall time⁽²⁾	80% to 20% reference points			450	ps
t_W(H)	Pulse duration high⁽³⁾	LS_CLK. 50% to 50% reference points	3.1			ns
t_W(L)	Pulse duration low⁽³⁾	LS_CLK. 50% to 50% reference points	3.1			ns
t_su	Setup time⁽⁴⁾	LS_WDATA valid before rising edge of LS_CLK (differential)			1.5	ns
t_h	Hold time⁽⁴⁾	LS_WDATA valid after rising edge of LS_CLK (differential)			1.5	ns
HIGH SPEED SERIAL INTERFACE (HSSI)
t_r	Rise time - data⁽⁵⁾⁽⁶⁾	From –A1 to A1 minimum eye height specification	50		115	ps
t_r	Rise time - clock⁽⁵⁾⁽⁶⁾	From –A1 to A1 minimum eye height specification	50		135	ps
t_f	Fall time — data⁽⁵⁾⁽⁶⁾	From A1 to –A1 minimum eye height specification	50		115	ps
t_f	Fall time — clock⁽⁵⁾⁽⁶⁾	From A1 to –A1 minimum eye height specification	50		135	ps
t_W(H)	Pulse duration high⁽⁷⁾	DCLK. 50% to 50% reference points	0.275			ns
t_W(L)	Pulse duration low⁽⁷⁾	DCLK. 50% to 50% reference points	0.275			ns

(1) See Figure 6-9 for rise time and fall time for LVCMOS.

(2) See Figure 6-4 for rise time and fall time for LSIF.

(3) See Figure 6-4 for pulse duration high and low time for LSIF.

(4) See Figure 6-4 for setup and hold time for LSIF.

(5) See Figure 6-11 for rise time and fall time for HSSI Eye Characteristics.

(6) See Figure 6-12 for rise time and fall time for HSSI.

(7) See Figure 6-12 for pulse duration high and low for HSSI.

A. See Equation 1 and Equation 2

Figure 6-3 LSIF Waveform Requirements

Equation 1.

Equation 2.

Figure 6-4 LSIF Timing Requirements

Figure 6-5 LSIF Rise, Fall Time Slew

Figure 6-6 LSIF Voltage Requirements

Figure 6-7 LSIF Equivalent Input

Figure 6-8 LVCMOS Input Hysteresis

Figure 6-9 LVCMOS Rise, Fall Time Slew Rate

A. See Equation 3 and Equation 4

Figure 6-10 HSSI Waveform Requirements

Equation 3.

Equation 4.

Figure 6-11 HSSI Eye Characteristics

Figure 6-12 HSSI CLK Characteristics