M54HC670F1R データシートの表示（PDF） - STMicroelectronics

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M54HC670F1R

4 WORD X 4 BIT REGISTER FILE (3 STATE)

STMicroelectronics 

INPUT AND OUTPUT EQUIVALENT CIRCUIT

M54/M74HC670

PIN DESCRIPTION

PIN No

5, 4

10, 9, 7, 6

11

12

14, 13

15, 1, 2, 3

7

14

SYMBOL

RA, RB

Q1 to Q4

RE

WE

WA, WB

D1 to D4

GND

VCC

NAME AND FUNCTION

Read Address Inputs

Data Outputs

3 State Output Read

Enable Input (Active LOW)

Write Enable Input (Active

LOW)

Write Address Inputs

Data Inputs

Ground (0V)

Positive Supply Voltage

IEC LOGIC SYMBOL

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

VCC

Supply Voltage

-0.5 to +7

V

VI

DC Input Voltage

-0.5 to VCC + 0.5

V

VO

DC Output Voltage

-0.5 to VCC + 0.5

V

IIK

DC Input Diode Current

± 20

mA

IOK

DC Output Diode Current

± 20

mA

IO

DC Output Source Sink Current Per Output Pin

± 25

mA

ICC or IGND DC VCC or Ground Current

± 50

mA

PD

Power Dissipation

500 (*)

mW

Tstg

Storage Temperature

TL

Lead Temperature (10 sec)

-65 to +150

oC

300

oC

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied.

(*) 500 mW: ≅ 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC

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