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74F189 PDF даташит

Спецификация 74F189 изготовлена ​​​​«National» и имеет функцию, называемую «64-Bit Random Access Memory with TRI-STATEE Outputs».

Детали детали

Номер произв 74F189
Описание 64-Bit Random Access Memory with TRI-STATEE Outputs
Производители National
логотип National логотип 

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74F189 Даташит, Описание, Даташиты
August 1995
54F 74F189 64-Bit Random Access
Memory with TRI-STATE Outputs
General Description
The ’F189 is a high-speed 64-bit RAM organized as a 16-
word by 4-bit array Address inputs are buffered to minimize
loading and are fully decoded on-chip The outputs are TRI-
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
Features
Y TRI-STATE outputs for data bus applications
Y Buffered inputs minimize loading
Y Address decoding on-chip
Y Diode clamped inputs minimize ringing
Y Available in SOIC (300 mil only)
Commercial
74F189PC
74F189SC (Note 1)
74F189SJ (Note 1)
Military
54F189DL (Note 2)
54F189FL (Note 2)
54F189LL (Note 2)
Package
Number
N16E
J16A
M16A
M16D
W16A
E20A
Package Description
16-Lead (0 300 Wide) Molded Dual-In-Line
16-Lead Ceramic Dual-In-Line
16-Lead (0 150 Wide) Molded Small Outline JEDEC
16-Lead (0 300 Wide) Molded Small Outline EIAJ
16-Lead Cerpack
20-Lead Ceramic Leadless Chip Carrier Type C
Note 1 Devices also available in 13 reel Use suffix e SCX and SJX
Note 2 Military grade device with environmental and burn-in processing Use suffix e DLQB FLQB and LLQB
Logic Symbols
Connection Diagrams
Pin Assignment
for DIP SOIC and Flatpak
Pin Assignment
for LCC
IEEE IEC
TL F 9493–1
TL F 9493 – 2
TL F 9493 – 3
TL F 9493–4
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 9493
RRD-B30M105 Printed in U S A









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74F189 Даташит, Описание, Даташиты
Unit Loading Fan Out
Pin Names
A0 – A3
CS
WE
D0 – D3
O0 – O3
Description
Address Inputs
Chip Select Input (Active LOW)
Write Enable Input (Active LOW)
Data Inputs
Inverted Data Outputs
UL
HIGH LOW
10 10
10 10
10 10
10 10
150 40 (33 3)
54F 74F
Input IIH IIL
Output IOH IOL
20 mA b0 6 mA
20 mA b1 2 mA
20 mA b0 6 mA
20 mA b0 6 mA
b3 0 mA 24 mA (20 mA)
Function Table
Inputs
Operation
CS WE
Condition of Outputs
LL
LH
HX
Write
Read
Inhibit
High Impedance
Complement of Stored Data
High Impedance
H e HIGH Voltage Level
L e LOW Voltage Level
X e Immaterial
Block Diagram
TL F 9493 – 5
2









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74F189 Даташит, Описание, Даташиты
Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Storage Temperature
b65 C to a150 C
Ambient Temperature under Bias
b55 C to a125 C
Junction Temperature under Bias
Plastic
b55 C to a175 C
b55 C to a150 C
VCC Pin Potential to
Ground Pin
b0 5V to a7 0V
Input Voltage (Note 2)
b0 5V to a7 0V
Input Current (Note 2)
b30 mA to a5 0 mA
Voltage Applied to Output
in HIGH State (with VCC e 0V)
Standard Output
TRI-STATE Output
b0 5V to VCC
b0 5V to a5 5V
Current Applied to Output
in LOW State (Max)
twice the rated IOL (mA)
Note 1 Absolute maximum ratings are values beyond which the device may
be damaged or have its useful life impaired Functional operation under
these conditions is not implied
Note 2 Either voltage limit or current limit is sufficient to protect inputs
DC Electrical Characteristics
Recommended Operating
Conditions
Free Air Ambient Temperature
Military
Commercial
b55 C to a125 C
0 C to a70 C
Supply Voltage
Military
Commercial
a4 5V to a5 5V
a4 5V to a5 5V
Symbol
VIH
VIL
VCD
VOH
VOL
IIH
IBVI
ICEX
VID
IOD
IIL
IOZH
IOZL
IOS
IZZ
ICCZ
Parameter
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH
Voltage
Output LOW
Voltage
Input HIGH
Current
54F 10% VCC
54F 10% VCC
74F 10% VCC
74F 10% VCC
74F 5% VCC
74F 5% VCC
54F 10% VCC
74F 10% VCC
54F
74F
Input HIGH Current 54F
Breakdown Test
74F
Output HIGH
Leakage Current
54F
74F
Input Leakage
Test
74F
Output Leakage
Circuit Current
74F
Input LOW Current
Output Leakage Current
Output Leakage Current
Output Short-Circuit Current
Bus Drainage Test
Power Supply Current
54F 74F
Min Typ Max
20
08
b1 2
25
24
25
24
27
27
05
05
20 0
50
100
70
250
50
4 75
3 75
b0 6
b1 2
50
b50
b60
b150
500
37 55
Units
V
V
V
V
V
mA
mA
mA
V
mA
mA
mA
mA
mA
mA
mA
VCC
Min
Min
Min
Max
Max
Max
00
00
Max
Max
Max
Max
0 0V
Max
Conditions
Recognized as a HIGH Signal
Recognized as a LOW Signal
IIN e b18 mA
IOH e b1 mA
IOH e b3 mA
IOH e b1 mA
IOH e b3 mA
IOH e b1 mA
IOH e b3 mA
IOL e 20 mA
IOL e 24 mA
VIN e 2 7V
VIN e 7 0V
VOUT e VCC
IID e 1 9 mA
All Other Pins Grounded
VIOD e 150 mV
All Other Pins Grounded
VIN e 0 5V (except CS)
VIN e 0 5V (CS)
VOUT e 2 7V
VOUT e 0 5V
VOUT e 0V
VOUT e 5 25V
VO e HIGH Z
3










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