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ZHCSA09F July 2012 – December 2022 ISO1540 , ISO1541

PRODUCTION DATA

6.12 Switching Characteristics

over recommended operating conditions, unless otherwise noted

PARAMETER		TEST CONDITIONS		MIN	TYP	MAX	UNIT
3 V ≤ VCC1, VCC2 ≤ 3.6 V
t_f1	Output Signal Fall Time (SDA1, SCL1)	See Figure 7-1 R1 = 953 Ω, C1 = 40 pF	0.7 × VCC1 to 0.3 × VCC1	8	17	29	ns
t_f1	Output Signal Fall Time (SDA1, SCL1)	See Figure 7-1 R1 = 953 Ω, C1 = 40 pF	0.9 × VCC1 to 900 mV	16	29	48	ns
t_f2	Output Signal Fall Time (SDA2, SCL2)	See Figure 7-1 R2 = 95.3 Ω, C2 = 400 pF	0.7 × VCC2 to 0.3 × VCC2	14	23	47	ns
t_f2	Output Signal Fall Time (SDA2, SCL2)	See Figure 7-1 R2 = 95.3 Ω, C2 = 400 pF	0.9 × VCC2 to 400 mV	35	50	100	ns
t_pLH1-2	Low-to-High Propagation Delay, Side 1 to Side 2	See Figure 7-1 R1 = 953 Ω, R2 = 95.3 Ω, C1, C2 = 10 pF	0.55 V to 0.7 × VCC2		33	65	ns
t_PHL1-2	High-to-Low Propagation Delay, Side 1 to Side 2		0.7 V to 0.4 V		90	181	ns
PWD_1-2	Pulse Width Distortion \|t_pHL1-2 – t_pLH1-2\|				55	123	ns
t_PLH2-1⁽¹⁾	Low-to-High Propagation Delay, Side 2 to Side 1		0.4 × VCC2 to 0.7 × VCC1		47	68	ns
t_PHL2-1⁽¹⁾	High-to-Low Propagation Delay, Side 2 to Side 1		0.4 × VCC2 to 0.9 V		67	109	ns
PWD_2-1⁽¹⁾	Pulse Width Distortion \|t_pHL2-1 – t_pLH2-1\|				20	49	ns
t_LOOP1⁽¹⁾	Round-trip propagation delay on Side 1	See Figure 7-2; R1 = 953 Ω, C1 = 40 pF R2 = 95.3 Ω, C2 = 400 pF	0.4 V to 0.3 × VCC1		100	165	ns
4.5 V ≤ VCC1, VCC2 ≤ 5.5 V
t_f1	Output Signal Fall Time (SDA1, SCL1)	See Figure 7-1 R1 = 1430 Ω, C1 = 40 pF	0.7 × VCC1 to 0.3 × VCC1	6	11	22	ns
t_f1	Output Signal Fall Time (SDA1, SCL1)	See Figure 7-1 R1 = 1430 Ω, C1 = 40 pF	0.9 × VCC1 to 900 mV	13	21	48	ns
t_f2	Output Signal Fall Time (SDA2, SCL2)	See Figure 7-1 R2 = 143 Ω, C2 = 400 pF	0.7 × VCC2 to 0.3 × VCC2	10	18	35	ns
t_f2	Output Signal Fall Time (SDA2, SCL2)	See Figure 7-1 R2 = 143 Ω, C2 = 400 pF	0.9 × VCC2 to 400 mV	28	41	76	ns
t_pLH1-2	Low-to-High Propagation Delay, Side 1 to Side 2	See Figure 7-1 R1 = 1430 Ω, R2 = 143 Ω, C1,2 = 10 pF	0.55 V to 0.7 × VCC2		31	62	ns
t_PHL1-2	High-to-Low Propagation Delay, Side 1 to Side 2		0.7 V to 0.4 V		70	139	ns
PWD_1-2	Pulse Width Distortion \|t_pHL1-2 – t_pLH1-2\|				38	80	ns
t_PLH2-1⁽¹⁾	Low-to-high propagation delay, side 2 to side 1		0.4 × VCC2 to 0.7 × VCC1		55	80	ns
t_PHL2-1⁽¹⁾	High-to-low propagation delay, Side 2 to side 1		0.4 × VCC2 to 0.9 V		47	85	ns
PWD_2-1⁽¹⁾	Pulse Width Distortion \|t_pHL2-1 – t_pLH2-1\|				8	34	ns
t_LOOP1⁽¹⁾	Round-trip propagation delay on side 1	See Figure 7-2; R1 = 1430 Ω, C1 = 40 pF R2 = 143 Ω, C2 = 400 pF	0.4 V to 0.3 × VCC1		110	180	ns

(1) This parameter does not apply to the ISO1541 SCL1 line as it is unidirectional.