Fairchild 74F219 service manual

June 1988
Revised September 2000

74F219
64-Bit Random Access Memory with 3-STATE Outputs

74F219 64-Bit Random Access Memory with 3-STATE Outputs

General Description

The 74F219 is a high-speed 64-bit RAM organized as a 16­word by 4-bit array. Address inputs are buffered to mini­mize loading and are fu lly decoded on-chip. The outputs
are 3-STATE and are i n the high-impedance sta te when­ever the Chip Sele ct (CS
active only in the Read mode. This device is sim ilar to the
74F189 but features non-inverting, rather than inverting,
data outputs.

) input is HIGH. The outputs are

Features

■ 3-STATE outputs for data bus applications

■ Buffered inputs minimize loading

■ Address decoding on-chip

■ Diode clamped inputs minimize ringing

■ Available in SOIC (300 mil only)

Ordering Code:

Order Number Package Number Package Description

74F219SC M16B 16-Lead Small Outline Intergrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F219SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F219PC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Devices also availab le in Tape and Reel. Specify by appending the suffix letter “X” to the o rdering code.

Logic Symbol Connection Diagram

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Unit Loading/Fan Out

74F219

Pin Names Description

A0–A

3

CS
WE
D

0–D3

O

0–O3

Function Table

CS

L L Write High Impedance
L H Read True Stored Data
H X Inhibit High Impedance

H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial

Block Diagram

U.L.

HIGH/LOW

Address Inputs 1.0/1.0 20 µA/−0.6 mA
Chip Select Input (Active LOW) 1.0/2.0 20 µA/−1.2 mA
Write Enable Input (Active LOW) 1.0/1.0 20 µA/−0.6 mA
Data Inputs 1.0/1.0 20 µA/−0.6 mA
3-STATE Data Outputs 150/40 (33.3) −3 mA/24 mA (20 mA)

Inputs

WE

Operation Condition of Outputs

Input I

Output I

IH/IIL
OH/IOL

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Absolute Maximum Ratings(Note 1) Recommended Operating

Storage Temperature −65°C to +150°C
Ambient Temperature under Bias
Junction Temperature under Bias

Pin Potential to Ground Pin −0.5V to +7.0V

V

CC

Input Voltage (Note 2)
Input Current (Note 2)

−55°C to +125°C

−55°C to +150°C

−0.5V to +7.0V

−30 mA to +5.0 mA

Voltage Applied to Output

in HIGH State (with V
Standard Output

CC

= 0V)

−0.5V to V

3-STATE Output −0.5V to +5.5V

Current Applied to Output

in LOW State (Max) twice the rated I

OL

Conditions

Free Air Ambient Temperature 0
Supply Voltage

Note 1: Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired . Functional operation

CC

under these conditions is not implied.
Note 2: Either voltage lim it or c urrent limit is sufficient to protect inputs.

(mA)

DC Electrical Characteristics

Symbol Parameter

V
V
V
V

V

I

IH

I

BVI

I

CEX

V

I

OD

I

IL

I

OZH

I

OZL

I

OS

I

ZZ

I

CC

IH
IL
CD
OH

OL

ID

Input HIGH Voltage 2.0 V Recognized as a HIGH Signal
Input LOW Voltage 0.8 V Recognized as a LOW Signal
Input Clamp Diode Voltage −1.2 V Min IIN = −18 mA
Output HIGH 10% V
Voltage 10% V

Output LOW 10% V
Voltage
Input HIGH
Current
Input HIGH Current
Breakdown Test
Output HIGH
Leakage Current
Input Leakage
Test All Other Pins Grounded
Output Leakage
Circuit Current All Other Pins Grounded

Input LOW −0.6
Current −1.2 VIN = 0.5V (CS)
Output Leakage Current 50 µAMaxV
Output Leakage Current −50 µAMaxV
Output Short-Circuit Current −60 −150 mA Max V
Bus Drainage Test 500 µA0.0VV
Power Supply Current 37 55 mA Max

5% V
5% V

Min

Typ Max

2.5

CC

2.4 IOH = −3 mA

CC

2.7 IOH = −1 mA

CC

2.7 IOH = −3 mA

CC
CC

4.75 V 0.0

3.75 µA0.0

Units

0.5 V Min IOL = 24 mA

5.0 µAMaxVIN = 2.7V

7.0 µAMaxVIN = 7.0V

50 µAMaxV

mA Max

V

CC

IOH = −1 mA

VMin

IID = 1.9 µA

V

VIN = 0.5V (An, WE, Dn)

OUT

IOD

OUT
OUT
OUT
OUT

+4.5V to +5.5V

Conditions

= V

CC

= 150 mV

= 2.7V
= 0.5V
= 0V
= 5.25V

74F219

°C to +70°C

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