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74F189PC 数据表(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 74F189PC
功能描述  64-Bit Random Access Memory with TRI-STATEE Outputs
PDF  8 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

74F189PC 数据表(HTML) 2 Page - National Semiconductor (TI)

  74F189PC Datasheet HTML 1Page - National Semiconductor (TI) 74F189PC Datasheet HTML 2Page - National Semiconductor (TI) 74F189PC Datasheet HTML 3Page - National Semiconductor (TI) 74F189PC Datasheet HTML 4Page - National Semiconductor (TI) 74F189PC Datasheet HTML 5Page - National Semiconductor (TI) 74F189PC Datasheet HTML 6Page - National Semiconductor (TI) 74F189PC Datasheet HTML 7Page - National Semiconductor (TI) 74F189PC Datasheet HTML 8Page - National Semiconductor (TI)  
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background image
Unit LoadingFan Out
54F74F
Pin Names
Description
UL
Input IIH IIL
HIGHLOW
Output IOH IOL
A0–A3
Address Inputs
1010
20 mA b06 mA
CS
Chip Select Input (Active LOW)
1010
20 mA b12 mA
WE
Write Enable Input (Active LOW)
1010
20 mA b06 mA
D0–D3
Data Inputs
1010
20 mA b06 mA
O0–O3
Inverted Data Outputs
15040 (333)
b
30 mA24 mA (20 mA)
Function Table
Inputs
Operation
Condition of Outputs
CS
WE
L
L
Write
High Impedance
L
H
Read
Complement of Stored Data
H
X
Inhibit
High Impedance
H e HIGH Voltage Level
L e LOW Voltage Level
X e Immaterial
Block Diagram
TLF9493 – 5
2



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