74F189SC

74F189SC Datasheet

74F189 64-Bit Random Access Memory with 3-STATE Outputs

Part	Datasheet
74F189SC	74F189SC (pdf)

Related Parts	Information
74F189PC	74F189PC

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74F189 64-Bit Random Access Memory with 3-STATE Outputs 74F189 64-Bit Random Access Memory with 3-STATE Outputs The F189 is a high-speed 64-bit RAM organized as a 16word by 4-bit array. Address inputs are buffered to minimize loading and are fully decoded on-chip. The outputs are 3-STATE and are in the high impedance state whenever the Chip Select CS input is HIGH. The outputs are active only in the Read mode and the output data is the complement of the stored data. s 3-STATE outputs for data bus applications s Buffered inputs minimize loading s Address decoding on-chip s Diode clamped inputs minimize ringing Ordering Code: Order Number Package Number Package Description 74F189PC N16E 16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide Logic Symbols Connection Diagram IEEE/IEC 2004 Fairchild Semiconductor Corporation DS009493 74F189 Unit Loading/Fan Out Pin Names U.L. HIGH/LOW Input IIH/IIL Output IOH/IOL Address Inputs Chip Select Input Active LOW 20 µA/−0.6 mA 20 µA/−1.2 mA Write Enable Input Active LOW 20 µA/−0.6 mA Data Inputs Inverted Data Outputs 20 µA/−0.6 mA 150/40 mA/24 mA 20 mA Function Table Inputs H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Block Diagram Operation Condition of Outputs Write Read Inhibit High Impedance Complement of Stored Data High Impedance 74F189 Absolute Maximum Ratings Note 1 Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias VCC Pin Potential to Ground Pin Input Voltage Note 2 Input Current Note 2 Voltage Applied to Output in HIGH State with VCC = 0V Standard Output 3-STATE Output Current Applied to Output in LOW State Max −65°C to +150°C −55°C to +125°C −55°C to +175°C −0.5V to +7.0V −0.5V to +7.0V −30 mA to mA −0.5V to VCC −0.5V to +5.5V Recommended Operating Conditions Free Air Ambient Temperature Supply Voltage 0°C to +70°C +4.5V to +5.5V

PDF Datasheet Preview

74F189 64-Bit Random Access Memory with 3-STATE Outputs
74F189 64-Bit Random Access Memory with 3-STATE Outputs

The F189 is a high-speed 64-bit RAM organized as a 16word by 4-bit array. Address inputs are buffered to minimize loading and are fully decoded on-chip. The outputs are 3-STATE and are in the high impedance state whenever the Chip Select CS input is HIGH. The outputs are active only in the Read mode and the output data is the complement of the stored data.
s 3-STATE outputs for data bus applications s Buffered inputs minimize loading s Address decoding on-chip s Diode clamped inputs minimize ringing
Ordering Code:

Order Number Package Number

Package Description
74F189PC

N16E
16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide

Logic Symbols

Connection Diagram

IEEE/IEC
2004 Fairchild Semiconductor Corporation DS009493
74F189

Unit Loading/Fan Out

Pin Names

U.L. HIGH/LOW

Input IIH/IIL Output IOH/IOL

Address Inputs Chip Select Input Active LOW
20 µA/−0.6 mA 20 µA/−1.2 mA

Write Enable Input Active LOW
20 µA/−0.6 mA

Data Inputs Inverted Data Outputs
20 µA/−0.6 mA
150/40 mA/24 mA 20 mA

Function Table

Inputs

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

Block Diagram

Operation

Condition of Outputs

Write Read Inhibit

High Impedance Complement of Stored Data High Impedance
74F189

Absolute Maximum Ratings Note 1

Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias VCC Pin Potential to

Ground Pin Input Voltage Note 2 Input Current Note 2 Voltage Applied to Output
in HIGH State with VCC = 0V Standard Output 3-STATE Output Current Applied to Output in LOW State Max
−65°C to +150°C −55°C to +125°C −55°C to +175°C
−0.5V to +7.0V −0.5V to +7.0V −30 mA to mA
−0.5V to VCC −0.5V to +5.5V

Recommended Operating Conditions

Free Air Ambient Temperature Supply Voltage
0°C to +70°C +4.5V to +5.5V

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Datasheet ID: 74F189SC 513292