SCHS141 Data sheet

SCHS141J March 1998 – October 2022 CD54HC112 , CD54HCT112 , CD74HC112 , CD74HCT112

PRODMIX

Refer to the PDF data sheet for device specific package drawings

5.6 Switching Characteristics

t_r, t_f = 6 ns

PARAMETER		V_CC (V)	25℃			–40℃ to 85℃		–55℃ to 125℃		UNIT
PARAMETER		V_CC (V)	MIN	TYP	MAX	MIN	MAX	MIN	MAX	UNIT
HC TYPES
t_PLH, t_PHL	Propagation delay, CLK to Q, Q	2			175		220		265	ns
		4.5		14^⁽³⁾	35		44		53
		6			30		37		45
t_PLH, t_PHL	Propagation delay, PRE to Q, Q	2			155		195		235	ns
		4.5		13^⁽³⁾	31		39		47
		6			26		33		40
t_PLH, t_PHL	Propagation delay, CLR to Q, Q	2			180		225		270	ns
		4.5		15^⁽³⁾	36		45		54
		6			31		38		46
t_TLH, t_THL	Output transition time	2			75		95		110	ns
		4.5			15		19		22
		6			13		16		19
C_I	Input capacitance				10		10		10	pF
f_MAX	CLK frequency	5		60^⁽³⁾						MHz
C_PD	Power dissipation capacitance⁽¹⁾⁽²⁾	5		12^⁽⁴⁾						pF
HCT TYPES
t_PLH, t_PHL	Propagation delay, CLK to Q, Q	4.5		14^⁽³⁾	35		44		53	ns
t_PLH, t_PHL	Propagation delay, PRE to Q, Q	4.5		13^⁽³⁾	32		40		48	ns
t_PLH, t_PHL	Propagation delay, CLR to Q, Q	4.5		14^⁽³⁾	37		46		56	ns
t_TLH, t_THL	Output transition time	4.5			15		19		22	ns
C_I	Input capacitance				10		10		10	pF
f_MAX	CLK frequency	5		60^⁽³⁾						MHz
C_PD	Power dissipation capacitance⁽¹⁾⁽²⁾	5		20^⁽⁴⁾						pF

(1) C_PD is used to determine the dynamic power consumption, per flip-flop.

(2) P_D = C_PD V_CC² f_i + ∑ C_L f_o where f_i = input frequency, f_o = output frequency, C_L = output load capacitance, V_CC = supply voltage.

(3) C_L = 15 pF and V_CC = 5 V.

(4) V_CC = 5 V.