74ABT377 datasheet, PDF - EEWORLD Datasheet

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74ABT377: DescriptionOctal D-Type Flip-Flop with Clock Enable; File Size101KB，9 Pages; ManufacturerFairchild; Websitehttp://www.fairchildsemi.com/

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74ABT377 Overview

Octal D-Type Flip-Flop with Clock Enable

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74ABT377 Octal D-Type Flip-Flop with Clock Enable

January 1993

Revised November 1999

74ABT377

Octal D-Type Flip-Flop with Clock Enable

General Description

The ABT377 has eight edge-triggered, D-type flip-flops

with individual D inputs and Q outputs. The common buff-

ered Clock (CP) input loads all flip-flops simultaneously

when the Clock Enable (CE) is LOW.

The register is fully edge-triggered. The state of each D

input, one setup time before the LOW-to-HIGH clock transi-

tion, is transferred to the corresponding flip-flop’s Q output.

The CE input must be stable only one setup time prior to

the LOW-to-HIGH clock transition for predictable operation.

Features

Clock enable for address and data synchronization

applications

Eight edge-triggered D-type flip-flops

Buffered common clock

See ABT273 for master reset version

See ABT373 for transparent latch version

See ABT374 for 3-STATE version

Output sink capability of 64 mA, source capability

of 32 mA

Guaranteed latchup protection

High impedance glitch free bus loading during entire

power up and power down cycle

Non-destructive hot insertion capability

Disable time less than enable time to avoid bus

contention

Ordering Code:

Order Number

74ABT377CSC

74ABT377CSJ

74ABT377CMSA

74ABT377CMTC

Package Number

M20B

M20D

MSA20

MTC20

Package Description

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body

20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide

20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Pin Descriptions

Pin Names

–D

–Q

Descriptions

Data Inputs

Clock Enable (Active LOW)

Clock Pulse Input

Data Outputs

Truth Table

Operating Mode

Load “1”

Load “0”

Hold

(Do Nothing)

Inputs

Output

No Change

HIGH Voltage Level

LOW Voltage Level

Immaterial

LOW-to-HIGH Clock Transition

HIGH Voltage Level one setup time prior to the

LOW-to-HIGH Clock Transition

LOW Voltage Level one setup time prior to the

LOW-to-HIGH Clock Transition

DS011550

www.fairchildsemi.com

74ABT377 Related Products

	74ABT377	74ABT377CMSA	74ABT377CSC	74ABT377CMTC	74ABT377CSJ
Description	Octal D-Type Flip-Flop with Clock Enable	Octal D-Type Flip-Flop with Clock Enable	Octal D-Type Flip-Flop with Clock Enable	Octal D-Type Flip-Flop with Clock Enable	Octal D-Type Flip-Flop with Clock Enable
Is it Rohs certified?	-	conform to	conform to	incompatible	conform to
Maker	-	Fairchild	Fairchild	Fairchild	Fairchild
Parts packaging code	-	SSOP	SOIC	TSSOP	SOIC
package instruction	-	5.30 MM, EIAJ TYPE2, SSOP-20	SOP, SOP20,.4	TSSOP, TSSOP20,.25	5.30 MM, EIAJ TYPE2, SOP-20
Contacts	-	20	20	20	20
Reach Compliance Code	-	compliant	unknown	compli	compli
Other features	-	WITH HOLD MODE	WITH HOLD MODE	WITH HOLD MODE	WITH HOLD MODE
series	-	ABT	ABT	ABT	ABT
JESD-30 code	-	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20
JESD-609 code	-	e3	e3	e0	e3
length	-	7.2 mm	12.8 mm	6.5 mm	12.6 mm
Load capacitance (CL)	-	50 pF	50 pF	50 pF	50 pF
Logic integrated circuit type	-	D FLIP-FLOP	D FLIP-FLOP	D FLIP-FLOP	D FLIP-FLOP
MaximumI(ol)	-	0.064 A	0.064 A	0.064 A	0.064 A
Humidity sensitivity level	-	1	1	-	1
Number of digits	-	8	8	8	8
Number of functions	-	1	1	1	1
Number of terminals	-	20	20	20	20
Maximum operating temperature	-	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-	-40 °C	-40 °C	-40 °C	-40 °C
Output polarity	-	TRUE	TRUE	TRUE	TRUE
Package body material	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	-	SSOP	SOP	TSSOP	SOP
Encapsulate equivalent code	-	SSOP20,.3	SOP20,.4	TSSOP20,.25	SOP20,.3
Package shape	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	-	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	-	260	260	-	260
power supply	-	5 V	5 V	5 V	5 V
Maximum supply current (ICC)	-	30 mA	30 mA	30 mA	30 mA
propagation delay (tpd)	-	6.8 ns	6.8 ns	6.8 ns	6.8 ns
Certification status	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	-	2.05 mm	2.65 mm	1.2 mm	2.1 mm
Maximum supply voltage (Vsup)	-	5.5 V	5.5 V	5.5 V	5.5 V
Minimum supply voltage (Vsup)	-	4.5 V	4.5 V	4.5 V	4.5 V
Nominal supply voltage (Vsup)	-	5 V	5 V	5 V	5 V
surface mount	-	YES	YES	YES	YES
technology	-	BICMOS	BICMOS	BICMOS	BICMOS
Temperature level	-	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	-	Matte Tin (Sn)	Matte Tin (Sn)	Tin/Lead (Sn/Pb)	Matte Tin (Sn)
Terminal form	-	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	-	0.65 mm	1.27 mm	0.65 mm	1.27 mm
Terminal location	-	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	-	NOT SPECIFIED	NOT SPECIFIED	-	NOT SPECIFIED
Trigger type	-	POSITIVE EDGE	POSITIVE EDGE	POSITIVE EDGE	POSITIVE EDGE
width	-	5.3 mm	7.5 mm	4.4 mm	5.3 mm
minfmax	-	150 MHz	150 MHz	150 MHz	150 MHz
Base Number Matches	-	1	1	1	1

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