74F646BSC datasheet, PDF - EEWORLD Datasheet

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74F646BSC: DescriptionOctal Transceiver/Register with 3-STATE Outputs; Categorylogic logic; File Size81KB，9 Pages; ManufacturerFairchild; Websitehttp://www.fairchildsemi.com/

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74F646BSC Overview

Octal Transceiver/Register with 3-STATE Outputs

74F646BSC Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Fairchild
Parts packaging code	SOIC
package instruction	SOP, SOP24,.4
Contacts	24
Reach Compliance Code	compli
Control type	INDEPENDENT CONTROL
Counting direction	BIDIRECTIONAL
series	F/FAST
JESD-30 code	R-PDSO-G24
JESD-609 code	e0
length	15.4 mm
Logic integrated circuit type	REGISTERED BUS TRANSCEIVER
MaximumI(ol)	0.064 A
Number of digits	8
Number of functions	1
Number of ports	2
Number of terminals	24
Maximum operating temperature	70 °C
Minimum operating temperature
Output characteristics	3-STATE
Output polarity	TRUE
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP24,.4
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	5 V
Maximum supply current (ICC)	150 mA
Prop。Delay @ Nom-Su	7 ns
propagation delay (tpd)	8 ns
Certification status	Not Qualified
Maximum seat height	2.65 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	TTL
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
translate	N/A
Trigger type	POSITIVE EDGE
width	7.5 mm
Base Number Matches	1

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74F646 • 74F646B • 74F648 Octal Transceiver/Register with 3-STATE Outputs

March 1988

Revised August 1999

74F646 • 74F646B • 74F648

Octal Transceiver/Register with 3-STATE Outputs

General Description

These devices consist of bus transceiver circuits with 3-

STATE, D-type flip-flops, and control circuitry arranged for

multiplexed transmission of data directly from the input bus

or from the internal registers. Data on the A or B bus will be

clocked into the registers as the appropriate clock pin goes

to a high logic level. Control G and direction pins are pro-

vided to control the transceiver function. In the transceiver

mode, data present at the high impedance port may be

stored in either the A or the B register or in both. The select

controls can multiplex stored and real-time (transparent

mode) data. The direction control determines which bus

will receive data when the enable control G is Active LOW.

In the isolation mode (control G HIGH), A data may be

stored in the B register and/or B data may be stored in the

A register.

Features

Independent registers for A and B buses

Multiplexed real-time and stored data

74F648 has inverting data paths

74F646/74F646B have non-inverting data paths

74F646B is a faster version of the 74F646

3-STATE outputs

300 mil slim DIP

Ordering Code:

Order Number

74F646SC

74F646MSA

74F646SPC

74F646BSC

74F646BSPC

74F648SC

74F648SPC

Package Number

M24B

MSA24

N24C

M24B

N24C

M24B

N24C

Package Description

24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

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

24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300 Wide

24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300 Wide

24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300 Wide

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

DS009580

www.fairchildsemi.com

74F646BSC Related Products

	74F646BSC	74F646BSPC	74F648SC	74F648SPC
Description	Octal Transceiver/Register with 3-STATE Outputs	Octal Transceiver/Register with 3-STATE Outputs	Octal Transceiver/Register with 3-STATE Outputs	Octal Transceiver/Register with 3-STATE Outputs
Is it Rohs certified?	incompatible	incompatible	incompatible	incompatible
Maker	Fairchild	Fairchild	Fairchild	Fairchild
Parts packaging code	SOIC	DIP	SOIC	DIP
package instruction	SOP, SOP24,.4	DIP, DIP24,.3	0.300 INCH, MS-013, SOIC-24	0.300 INCH, SLIM, PLASTIC, MS-001, DIP-24
Contacts	24	24	24	24
Reach Compliance Code	compli	unknow	compli	unknow
Control type	INDEPENDENT CONTROL	INDEPENDENT CONTROL	INDEPENDENT CONTROL	INDEPENDENT CONTROL
Counting direction	BIDIRECTIONAL	BIDIRECTIONAL	BIDIRECTIONAL	BIDIRECTIONAL
series	F/FAST	F/FAST	F/FAST	F/FAST
JESD-30 code	R-PDSO-G24	R-PDIP-T24	R-PDSO-G24	R-PDIP-T24
JESD-609 code	e0	e0	e0	e0
length	15.4 mm	31.915 mm	15.4 mm	31.915 mm
Logic integrated circuit type	REGISTERED BUS TRANSCEIVER	REGISTERED BUS TRANSCEIVER	REGISTERED BUS TRANSCEIVER	REGISTERED BUS TRANSCEIVER
MaximumI(ol)	0.064 A	0.064 A	0.064 A	0.064 A
Number of digits	8	8	8	8
Number of functions	1	1	1	1
Number of ports	2	2	2	2
Number of terminals	24	24	24	24
Maximum operating temperature	70 °C	70 °C	70 °C	70 °C
Output characteristics	3-STATE	3-STATE	3-STATE	3-STATE
Output polarity	TRUE	TRUE	TRUE	TRUE
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	DIP	SOP	DIP
Encapsulate equivalent code	SOP24,.4	DIP24,.3	SOP24,.4	DIP24,.3
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	IN-LINE	SMALL OUTLINE	IN-LINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
power supply	5 V	5 V	5 V	5 V
Maximum supply current (ICC)	150 mA	150 mA	150 mA	150 mA
Prop。Delay @ Nom-Su	7 ns	7.5 ns	9 ns	9 ns
propagation delay (tpd)	8 ns	8 ns	9 ns	9 ns
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	2.65 mm	5.08 mm	2.65 mm	5.08 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	NO	YES	NO
technology	TTL	TTL	TTL	TTL
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	GULL WING	THROUGH-HOLE	GULL WING	THROUGH-HOLE
Terminal pitch	1.27 mm	2.54 mm	1.27 mm	2.54 mm
Terminal location	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
translate	N/A	N/A	N/A	N/A
Trigger type	POSITIVE EDGE	POSITIVE EDGE	POSITIVE EDGE	POSITIVE EDGE
width	7.5 mm	7.62 mm	7.5 mm	7.62 mm
Base Number Matches	1	1	1	1

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