NSC 74F189PC

54F/74F189 64-Bit Random Access
Memory with TRI-STATEÉ Outputs
General Description
Features
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 TRISTATE 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.
Y
Commercial
Y
Y
Y
Y
TRI-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)
Package
Number
Military
Package Description
N16E
16-Lead (0.300× Wide) Molded Dual-In-Line
J16A
16-Lead Ceramic Dual-In-Line
74F189SC (Note 1)
M16A
16-Lead (0.150× Wide) Molded Small Outline, JEDEC
74F189SJ (Note 1)
M16D
16-Lead (0.300× Wide) Molded Small Outline, EIAJ
54F189FL (Note 2)
W16A
16-Lead Cerpack
54F189LL (Note 2)
E20A
20-Lead Ceramic Leadless Chip Carrier, Type C
74F189PC
54F189DL (Note 2)
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
TL/F/9493–1
IEEE/IEC
TL/F/9493 – 2
TL/F/9493 – 3
TL/F/9493–4
TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.
C1995 National Semiconductor Corporation
TL/F/9493
RRD-B30M105/Printed in U. S. A.
54F/74F189 64-Bit Random Access Memory with TRI-STATE Outputs
August 1995
Unit Loading/Fan Out
54F/74F
Pin Names
A0 – A3
CS
WE
D0 – D3
O 0 – O3
Description
U.L.
HIGH/LOW
Input IIH/IIL
Output IOH/IOL
Address Inputs
Chip Select Input (Active LOW)
Write Enable Input (Active LOW)
Data Inputs
Inverted Data Outputs
1.0/1.0
1.0/1.0
1.0/1.0
1.0/1.0
150/40 (33.3)
20 mA/b0.6 mA
20 mA/b1.2 mA
20 mA/b0.6 mA
20 mA/b0.6 mA
b 3.0 mA/24 mA (20 mA)
Function Table
Inputs
CS
WE
L
L
H
L
H
X
Operation
Condition of Outputs
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
Absolute Maximum Ratings (Note 1)
Recommended Operating
Conditions
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Storage Temperature
b 65§ C to a 150§ C
Ambient Temperature under Bias
Junction Temperature under Bias
Plastic
b 55§ C to a 125§ C
Free Air Ambient Temperature
Military
Commercial
b 55§ C to a 125§ C
0§ C to a 70§ C
Supply Voltage
Military
Commercial
b 55§ C to a 175§ C
b 55§ C to a 150§ C
a 4.5V to a 5.5V
a 4.5V to a 5.5V
VCC Pin Potential to
Ground Pin
b 0.5V to a 7.0V
b 0.5V to a 7.0V
Input Voltage (Note 2)
b 30 mA to a 5.0 mA
Input Current (Note 2)
Voltage Applied to Output
in HIGH State (with VCC e 0V)
b 0.5V to VCC
Standard Output
b 0.5V to a 5.5V
TRI-STATE Output
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
Symbol
54F/74F
Parameter
Min
VIH
Input HIGH Voltage
VIL
Input LOW Voltage
VCD
Input Clamp Diode Voltage
VOH
Output HIGH
Voltage
Typ
Units
2.0
54F 10% VCC
54F 10% VCC
74F 10% VCC
74F 10% VCC
74F 5% VCC
74F 5% VCC
VCC
Conditions
Max
V
Recognized as a HIGH Signal
0.8
V
Recognized as a LOW Signal
b 1.2
V
2.5
2.4
2.5
2.4
2.7
2.7
Min
IIN e b18 mA
V
Min
IOH
IOH
IOH
IOH
IOH
IOH
IOL e 20 mA
IOL e 24 mA
e
e
e
e
e
e
b 1 mA
b 3 mA
b 1 mA
b 3 mA
b 1 mA
b 3 mA
VOL
Output LOW
Voltage
54F 10% VCC
74F 10% VCC
0.5
0.5
V
Min
IIH
Input HIGH
Current
54F
74F
20.0
5.0
mA
Max
VIN e 2.7V
IBVI
Input HIGH Current
Breakdown Test
54F
74F
100
7.0
mA
Max
VIN e 7.0V
ICEX
Output HIGH
Leakage Current
54F
74F
250
50
mA
Max
VOUT e VCC
VID
Input Leakage
Test
74F
V
0.0
IID e 1.9 mA
All Other Pins Grounded
IOD
Output Leakage
Circuit Current
74F
3.75
mA
0.0
VIOD e 150 mV
All Other Pins Grounded
IIL
Input LOW Current
b 0.6
b 1.2
mA
Max
VIN e 0.5V (except CS)
VIN e 0.5V (CS)
IOZH
Output Leakage Current
50
mA
Max
VOUT e 2.7V
IOZL
Output Leakage Current
IOS
Output Short-Circuit Current
IZZ
Bus Drainage Test
ICCZ
Power Supply Current
4.75
b 60
37
3
b 50
mA
Max
VOUT e 0.5V
b 150
mA
Max
VOUT e 0V
500
mA
0.0V
VOUT e 5.25V
55
mA
Max
VO e HIGH Z
AC Electrical Characteristics
Symbol
Parameter
74F
54F
74F
TA e a 25§ C
VCC e a 5.0V
CL e 50 pF
*TA, VCC e Mil
CL e 50 pF
TA, VCC e Com
CL e 50 pF
Units
Min
Typ
Max
Min
Max
Min
Max
tPLH
tPHL
Access Time, HIGH or LOW
An to On
10.0
8.0
18.5
13.5
26.0
19.0
9.0
8.0
32.0
23.0
10.0
8.0
27.0
20.0
ns
tPZH
tPZL
Access Time, HIGH or LOW
CS to On
3.5
5.0
6.0
9.0
8.5
13.0
3.5
5.0
10.5
15.0
3.5
5.0
9.5
14.0
ns
tPHZ
tPLZ
Disable Time, HIGH or LOW
CS to On
2.0
3.0
4.0
5.5
6.0
8.0
2.0
2.5
8.0
10.0
2.0
3.0
7.0
9.0
ns
tPZH
tPZL
Write Recovery Time,
HIGH or LOW WE to On
6.5
6.5
15.0
11.0
28.0
15.5
6.5
6.5
37.5
17.5
6.5
6.5
29.0
16.5
ns
tPHZ
tPLZ
Disable Time, HIGH or LOW
WE to On
4.0
5.0
7.0
9.0
10.0
13.0
3.5
5.0
12.0
15.0
4.0
5.0
11.0
14.0
ns
AC Operating Requirements
Symbol
Parameter
74F
54F
74F
TA e a 25§ C
VCC e a 5.0V
*TA, VCC e Mil
TA, VCC e Com
Min
Min
Min
Max
Max
ts(H)
ts(L)
Setup Time, HIGH or LOW
An to WE
0
0
0
0
0
0
th(H)
th(L)
Hold Time, HIGH or LOW
An to WE
2.0
2.0
2.0
2.0
2.0
2.0
ts(H)
ts(L)
Setup Time, HIGH or LOW
Dn to WE
10.0
10.0
11.0
11.0
10.0
10.0
th(H)
th(L)
Hold Time, HIGH or LOW
Dn to WE
0
0
2.0
2.0
0
0
ts(L)
Setup Time, LOW
CS to WE
0
0
0
th(L)
Hold Time, LOW
CS to WE
6.0
7.5
6.0
tw(L)
WE Pulse Width, LOW
6.0
15.0
6.0
Units
Max
ns
ns
ns
*TA e b 55§ C to a 125§ C
4
ns
Ordering Information
The device number is used to form part of a simplified purchasing code where the package type and temperature range are
defined as follows:
74F
189
S
Temperature Range Family
74F e Commercial
54F e Military
C
X
Special Variations
X e Devices shipped in 13× reels
QB e Military grade with environmental
and burn-in processing shipped
in tubes
Device Type
Package Code
P e Plastic DIP
D e Ceramic DIP
F e Flatpak
L e Leadless Ceramic Chip Carrier (LCC)
S e Small Outline SOIC JEDEC
SJ e Small Outline SOIC EIAJ
Temperature Range
C e Commercial (0§ C to a 70§ C)
L e Military (b40§ C to a 125§ C)
Physical Dimensions inches (millimeters)
20-Lead Ceramic Leadless Chip Carrier (L)
NS Package Number E20A
5
Physical Dimensions inches (millimeters) (Continued)
16-Lead Ceramic Dual-In-Line Package (D)
NS Package Number J16A
16-Lead (0.150× Wide) Molded Small Outline Package, JEDEC (S)
NS Package Number M16A
6
Physical Dimensions inches (millimeters) (Continued)
16-Lead (0.300× Wide) Molded Dual-In-Line Package (P)
NS Package Number N16E
16-Lead (0.300× Wide) Molded Small Outline Package, EIAJ (SJ)
NS Package Number M16D
7
54F/74F189 64-Bit Random Access Memory with TRI-STATE Outputs
Physical Dimensions inches (millimeters) (Continued)
16 Lead Ceramic Flatpak (F)
NS Package Number W16A
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