70914S12PFG [IDT]

HIGH SPEED 36K (4K X 9) SYNCHRONOUS DUAL-PORT RAM;
70914S12PFG
型号: 70914S12PFG
厂家: INTEGRATED DEVICE TECHNOLOGY    INTEGRATED DEVICE TECHNOLOGY
描述:

HIGH SPEED 36K (4K X 9) SYNCHRONOUS DUAL-PORT RAM

静态存储器 内存集成电路
文件: 总12页 (文件大小:133K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
IDT70914S  
HIGH SPEED 36K (4K X 9)  
SYNCHRONOUS  
DUAL-PORT RAM  
LEAD FINISH (SnPb) ARE IN EOL PROCESS - LAST TIME BUY EXPIRES JUNE 15, 2018  
– Data input, address, and control registers  
– Fast 12ns clock to data out  
– Self-timed write allows fast cycle times  
– 16nscycletimes, 60MHzoperation  
Clock Enable feature  
TTL-compatible, single 5V (+ 10%) power supply  
Guaranteed data output hold times  
Available in 68-pin PLCC, and 80-pin TQFP  
Industrial temperature range (-40°C to +85°C) is available for  
selectedspeeds  
Features  
High-speed clock-to-data output times  
– Commercial:12/15/20ns(max.)  
Low-poweroperation  
– IDT70914S  
Active: 850 mW (typ.)  
Standby: 50 mW (typ.)  
Architecture based on Dual-Port RAM cells  
– Allowsfullsimultaneousaccessfrombothports  
Synchronous operation  
Green parts available, see ordering information  
– 4ns setup to clock, 1ns hold on all control, data, and address  
inputs  
Functional Block Diagram  
I/O0-8R  
I/O0-8L  
WRITE  
LOGIC  
WRITE  
LOGIC  
MEMORY  
ARRAY  
SENSE  
AMPS  
SENSE  
AMPS  
DECODER DECODER  
REG  
en  
REG  
en  
OE  
CLK  
CLKEN  
R
OE  
CLK  
CLKEN  
L
L
R
L
R
Self-  
Self-  
timed  
Write  
Logic  
timed  
Write  
Logic  
R/W  
L
REG  
R/WR  
REG  
CEL  
CER  
A0L-A11L  
A0R-A11R  
3490 drw 01  
FEBUARY 2018  
1
DSC-3490/11  
©2018 Integrated Device Technology, Inc.  
IDT70914S  
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM  
Commercial Temperature Range  
Description  
user's option. This feature is especially useful in data communication  
applications where it is necessary to use a parity bit for transmission/  
receptionerrorchecking.  
FabricatedusingCMOShigh-performancetechnology,these Dual-  
Ports typicallyoperateononly850mWofpoweratmaximumhigh-speed  
clock-to-dataoutput times as fast as12ns.An automaticpowerdown  
feature, controlled by CE, permits the on-chip circuitry of each port to  
enter a very low standby power mode.  
The IDT70914 is a high-speed 4K x 9 bit synchronous Dual-Port  
RAM. The memory array is based on Dual-Port memory cells to allow  
simultaneous access from both ports. Registers on control, data, and  
address inputs provide low set-up and hold times. The timing latitude  
providedbythisapproachallowsystemstobedesignedwithveryshort  
cycletimes.Withaninputdataregister,thisdevicehasbeenoptimizedfor  
applicationshavingunidirectionaldatafloworbidirectionaldataflowin  
bursts.  
The IDT70914 ispackaged ina68-pinPLCC,andan80-pinTQFP.  
TheIDT70914utilizesa9-bitwidedatapathtoallowforparityatthe  
Pin Configurations(1,2,3)  
26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10  
A
5L  
9
8
7
6
5
4
3
2
N/C  
I/O5L  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
A4L  
A3L  
A2L  
A1L  
A0L  
VCC  
I/O4L  
I/O3L  
I/O2L  
I/O1L  
I/O0L  
GND  
GND  
I/O0R  
I/O1R  
I/O2R  
I/O3R  
CLKEN  
CLK  
CLK  
CLKEN  
L
L
70914  
J68(4)  
1
R
68  
67  
66  
65  
64  
63  
62  
61  
R
A0R  
A1R  
A2R  
A3R  
A4R  
A5R  
A6R  
VCC  
I/O4R  
I/O5R  
44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60  
3490 drw 03  
,
NOTES:  
1. All VCC pins must be connected to power supply.  
2. All ground pins must be connected to ground supply.  
3. J68-1 package body is approximately .95 in x .95 in x .17 in.  
4. This package code is used to reference the package diagram.  
6.42  
2
Comme  
IDT70914S  
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM  
Commercial Temperature Range  
Pin Configuration(1,2,3) (con't.)  
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
N/C  
A6R  
40  
N/C  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
N/C  
A5R  
I/O5R  
I/O4R  
VCC  
A4R  
A3R  
A2R  
I/O3R  
I/O2R  
I/O1R  
I/O0R  
GND  
GND  
I/O0L  
I/O1L  
I/O2L  
I/O3L  
I/O4L  
VCC  
A1R  
A0R  
CLKENR  
CLKR  
CLKL  
CLKENL  
A0L  
70914  
PN80(4)  
A1L  
A2L  
A3L  
A4L  
A5L  
I/O5L  
N/C  
N/C  
N/C  
N/C  
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20  
3490 drw 04  
INDEX  
NOTES:  
1. All VCC pins must be connected to power supply.  
2. All ground pins must be connected to ground supply.  
3. PN80-1 package body is approximately 14mm x 14mm x 1.4mm.  
4. This package code is used to reference the package diagram.  
6.432  
IDT70914S  
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM  
Commercial Temperature Range  
Absolute Maximum Ratings(1)  
Maximum Operating Temperature  
and Supply Voltage(1,2)  
Symbol  
Rating  
Unit  
Com'l Only  
Grade  
Ambient  
Temperature  
GND  
VCC  
(2)  
V
TERM  
Terminal Voltage  
with Respect  
to GND  
-0.5 to +7.0  
V
Commercial  
0OC to +70OC  
0V  
5.0V + 10%  
(2)  
3490 tbl 02  
V
TERM  
Terminal Voltage  
-0.5 to VCC  
-55 to +125  
V
NOTES:  
1. ThisistheparameterTA.Thisisthe"instanton"casaetemperature  
Temperature  
Under Bias  
oC  
TBIAS  
2. Industrialtemperature:forspecific speeds,packagesandpowerscontactyour  
Storage  
Temperature  
-65 to +150  
50  
oC  
T
STG  
IOUT  
DC Output  
Current  
mA  
3490 tbl 01  
NOTES:  
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may  
cause permanent damage to the device. This is a stress rating only and functional  
operation of the device at these or any other conditions above those indicated  
in the operational sections of this specification is not implied. Exposure to absolute  
maximum rating conditions for extended periods may affect reliability.  
2. VTERM must not exceed VCC + 10% for more than 25% of the cycle time or 10ns  
maximum, and is limited to < 20mA for the period of VTERM > Vcc + 10%.  
Recommended DC Operating  
Conditions  
Symbol  
Parameter  
Min.  
Typ.  
Max. Unit  
V
CC  
Supply Voltage  
4.5  
5.0  
5.5  
0
V
V
V
GND  
Ground  
0
0
V
IH  
IL  
Input High Voltage  
Input Low Voltage  
2.2  
6.0(2)  
0.8  
____  
-0.5(1)  
V
____  
Capacitance  
(TA = +25°C, f = 1.0MHz) TQFP Only  
V
3490 tbl 03  
NOTES:  
1. VIL > -1.5V for pulse width less than 10ns.  
2. VTERM must not exceed VCC + 10%.  
Symbol  
Parameter  
Input Capacitance  
Output Capacitance  
Conditions  
IN = 3dV  
OUT = 3dV  
Max. Unit  
CIN  
V
8
9
pF  
COUT  
V
pF  
3490 tbl 04  
NOTES:  
1. These parameters are determined by device characterization, but are not  
production tested.  
2. 3dV references the interpolated capacitance when the input and output switch  
from 0V to 3V or from 3V to 0V.  
DC Electrical Characteristics Over the Operating  
Temperature and Supply Voltage Range (VCC = 5.0V ± 10%)  
70914S  
Symbol  
|ILI  
|ILO  
Parameter  
Input Leakage Current(1)  
Test Conditions  
CC = 5.5V, VIN = 0V to VCC  
CE = VIH, VOUT = 0V to VCC  
OL = +4mA  
OH = -4mA  
Min.  
Max.  
Unit  
___  
|
V
10  
10  
µA  
µA  
V
___  
___  
|
Output Leakage Current  
Output Low Voltage  
Output High Voltage  
V
OL  
OH  
I
0.4  
___  
V
I
2.4  
V
3490 tbl 05  
NOTE:  
1. At VCC < 2.0V, input leakages are undefined  
6.42  
4
Comme  
IDT70914S  
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM  
Commercial Temperature Range  
DC Electrical Characteristics Over the Operating  
Temperature and Supply Voltage Range(4) (VCC = 5V ± 10%)  
70914S12  
70914S15  
Com'l Only  
Com'l Only  
Typ.(2)  
Typ.(2)  
Symbol  
Parameter  
Test Condition  
and CE  
Version  
Max.  
Max.  
Unit  
ICC  
Dynamic Operating  
Current  
(Both Ports Active)  
CE  
L
R = VIL,  
COM'L  
190  
95  
310  
180  
90  
300  
mA  
Outputs Disabled  
(1)  
f = fMAX  
ISB1  
Standby Current  
(Both Ports - TTL  
Level Inputs)  
CEL and CER = VIH  
(1)  
COM'L  
COM'L  
150  
220  
140  
210  
mA  
mA  
f = fMAX  
ISB2  
Standby Current  
(One Port - TTL  
Level Inputs)  
CE"A" = VIL and  
(3)  
CE"B" = VIH  
170  
10  
160  
10  
Active Port Outputs  
(1)  
Disabled, f=fMAX  
ISB3  
Full Standby  
Both Ports CE  
R and  
Current (Both  
Ports - All CMOS  
Level Inputs)  
CE > VCC - 0.2V  
IN > VCC - 0.2V or  
IN < 0.2V, f = 0(2)  
L
COM'L  
COM'L  
15  
15  
mA  
V
V
ISB4  
Full Standby  
Current (One  
Port - All CMOS  
Level Inputs)  
CE"A" < 0.2V and  
CE"B" > VCC - 0.2V(3)  
mA  
165  
210  
155  
200  
V
V
IN > VCC - 0.2V or  
IN < 0.2V, Active Port  
Outputs Disabled  
(1)  
f = fMAX  
3490 tbl 06a  
70914S20  
Com'l Only  
Symbol  
Parameter  
Test Condition  
and CE  
Version  
Typ.(2)  
Max.  
Unit  
ICC  
Dynamic Operating  
Current  
(Both Ports Active)  
CE  
L
Outputs Disabled  
R = VIL,  
COM'L  
170  
85  
290  
130  
mA  
(1)  
f = fMAX  
ISB1  
Standby Current  
(Both Ports - TTL  
Level Inputs)  
CEL and CER = VIH  
(1)  
COM'L  
COM'L  
mA  
mA  
f = fMAX  
ISB2  
Standby Current  
(One Port - TTL  
Level Inputs)  
CE"A" = VIL and  
(3)  
CE"B" = VIH  
Active Port Outputs  
Disabled, f=fMAX  
150  
10  
200  
15  
(1)  
ISB3  
Full Standby  
Both Ports CE  
CE > VCC - 0.2V  
IN > VCC - 0.2V or  
IN < 0.2V, f = 0(2)  
R and  
Current (Both  
Ports - All CMOS  
Level Inputs)  
L
COM'L  
COM'L  
mA  
V
V
ISB4  
Full Standby  
Current (One  
Port - All CMOS  
Level Inputs)  
CE"A" < 0.2V and  
CE"B" > VCC - 0.2V(3)  
IN > VCC - 0.2V or  
IN < 0.2V, Active Port  
mA  
145  
190  
V
V
Outputs Disabled  
f = fMAX  
(1)  
3490 tbl 06b  
NOTES:  
1. At fMAX, address and control lines (except Output Enable) are cycling at the maximum frequency clock cycle of 1/tCYC, using "AC TEST CONDITIONS" at input levels  
of GND to 3V.  
2. f = 0 means no address, clock, or control lines change. Applies only to input at CMOS level standby.  
3. Port "A" may be either left or right port. Port "B" is the opposite from port "A".  
4. Vcc=5V, TA=25°C forTyp, andarenotproductiontested. ICCDC=150mA(Typ)  
5. Industrialtemperature:forspecificspeeds,packagesandpowerscontactyoursalesoffice.  
6.452  
IDT70914S  
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM  
Commercial Temperature Range  
AC Test Conditions  
Input Pulse Levels  
GND to 3.0V  
3ns Max.  
Input Rise/Fall Times  
Input Timing Reference Levels  
Output Reference Levels  
Output Load  
1.5V  
1.5V  
Figures 1,2 and 3  
3490 tbl 07  
5V  
5V  
893  
893Ω  
5pF*  
DATAOUT  
DATAOUT  
30pF  
347Ω  
347Ω  
3490 drw 05  
3490 drw 06  
Figure 1. AC Output Test load.  
Figure 2. Output Test Load  
(For tCKLZ, tCKHZ, tOLZ, and tOHZ).  
*Including scope and jig.  
8
7
6
9pF is the I/O capacitance  
of this device, and 30pF is the  
AC Test Load Capacitance  
5
tCD  
(Typical, ns)  
4
3
2
1
0
,
20 40 60 80 100 120 140 160 180 200  
Capacitance (pF)  
-1  
3490 drw 07  
Figure 3. Typical Output Derating (Lumped Capacitive Load).  
6.42  
6
Comme  
IDT70914S  
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM  
Commercial Temperature Range  
AC Electrical Characteristics Over the Operating Temperature Range  
(Read and Write Cycle Timing)(3)  
(Commercial: VCC = 5V ± 10%, TA = 0°C to +70°C)  
70914S12  
Com'l Only  
70914S15  
Com'l Only  
Symbol  
tCYC  
tCH  
Parameter  
Min.  
16  
Max.  
Min.  
20  
Max.  
Unit  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
____  
____  
____  
____  
____  
____  
Clock Cycle Time  
Clock High Time  
6
6
tCL  
Clock Low Time  
6
6
____  
____  
tCD  
Clock High to Output Valid  
Registered Signal Set-up Time  
Registered Signal Hold Time  
Data Output Hold After Clock High  
12  
15  
____  
____  
tS  
4
1
3
4
1
3
____  
____  
____  
____  
____  
____  
tH  
tDC  
(1,2)  
tCKLZ  
tCKHZ  
tOE  
Clock High to Output Low-Z  
2
2
Clock High to Output High-Z(1,2)  
Output Enable to Output Valid  
Output Enable to Output Low-Z(1,2)  
7
7
____  
____  
____  
____  
7
8
____  
____  
tOLZ  
tOHZ  
tSCK  
tHCK  
0
0
(1,2)  
____  
____  
Output Disable to Output High-Z  
7
7
____  
____  
Clock Enable, Disable Set-up Time  
Clock Enable, Disable Hold Time  
4
2
4
2
____  
____  
Port-to-Port Delay  
____  
____  
____  
____  
tCWDD  
tCSS  
Write Port Clock High to Read Data Delay  
25  
13  
30  
15  
ns  
Clock-to-Clock Setup Time  
ns  
3490 tbl 08a  
70914S20  
Com'l Only  
Symbol  
Parameter  
Min.  
20  
8
Max.  
Unit  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
____  
____  
____  
t
CYC  
CH  
CL  
CD  
Clock Cycle Time  
t
Clock High Time  
t
Clock Low Time  
8
____  
t
Clock High to Output Valid  
Registered Signal Set-up Time  
Registered Signal Hold Time  
Data Output Hold After Clock High  
Clock High to Output Low-Z(1,2)  
Clock High to Output High-Z(1,2)  
Output Enable to Output Valid  
Output Enable to Output Low-Z(1,2)  
Output Disable to Output High-Z(1,2)  
Clock Enable, Disable Set-up Time  
Clock Enable, Disable Hold Time  
20  
____  
t
S
H
5
1
3
____  
____  
____  
t
t
DC  
CKLZ  
CKHZ  
OE  
t
2
____  
t
9
____  
t
10  
____  
tOLZ  
0
____  
tOHZ  
9
____  
tSCK  
5
2
____  
tHCK  
Port-to-Port Delay  
Write Port Clock High to Read Data Delay  
Clock-to-Clock Setup Time  
____  
____  
t
CWDD  
35  
15  
ns  
tCSS  
ns  
3490 tbl 08b  
NOTES:  
1. Transition is measured 0mV from Low or High impedance voltage with the Output Test Load (Figure 2).  
2. This parameter is guaranteed by device characterization, but is not production tested.  
3. Industrial temperature: for specific speeds, packages and powers contact your sales office.  
6.472  
IDT70914S  
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM  
Commercial Temperature Range  
Timing Waveform of Read Cycle, Either Side  
tCYC  
tCH  
tCL  
CLK  
tSCK  
tSCK  
tHCK  
CLKEN  
tS  
tH  
CE  
R/W  
ADDRESS  
DATAOUT  
An  
An + 1  
An + 2  
An + 3  
(1)  
tDC  
tCKHZ  
tCD  
Qn  
Qn + 1  
Qn + 1  
(1)  
tCKLZ  
(1)  
(1)  
tOHZ  
tOLZ  
tOE  
OE  
3490 drw 08  
Timing Waveform of Write with Port-to-Port Read(2,3,4)  
CLK "A"  
R/W "A"  
NO  
MATCH  
ADDR "A"  
DATA IN "A"  
CLK "B"  
MATCH  
VALID  
(5)  
tCCS  
tCD  
R/W "B"  
NO  
MATCH  
ADDR "B"  
MATCH  
tCWDD  
tCD  
DATA OUT "B"  
VALID  
VALID  
tDC  
3490 drw 09  
NOTES:  
1. Transition is measured 200mV from Low or High-impedance voltage with the Output Test Load (Figure 2).  
2. CEL = CER = VIL, CLKENL = CLKENR = VIL.  
3. OE = VIL for the reading port, port 'B'.  
4. All timing is the same for left and right ports. Ports "A" may be either the left or right port. Port "B" is opposite from port "A".  
5. If tCCS < maximum specified, then data from right port READ is not valid until the maximum specified for tCWDD.  
If tCCS > maximum specified, then data from right port READ is not valid until tCCS + tCD. tCWDD does not apply in this case.  
6.42  
8
Comme  
IDT70914S  
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM  
Commercial Temperature Range  
Timing Waveform of Read-to-Write Cycle No. 1(1,2) (tCYC = min.)  
tCYC  
tCYC  
tCH  
tCL  
tCH  
tCL  
CLK  
CLKEN  
CE  
tS  
tH  
(1)  
R/W  
An + 1(1)  
Dn + 1(1)  
ADDRESS  
DATAIN  
An  
An + 1  
An + 2  
Dn + 2  
(3)  
tCD  
tCKHZ  
DATAOUT  
Qn  
(3)  
tCKLZ  
3490 drw 10  
Timing Waveform of Read-to-Write Cycle No. 2(4) (tCYC > min.)  
(4)  
tCYC  
tCH  
tCL  
CLK  
CLKEN  
CE  
tS  
tH  
R/W  
ADDRESS  
DATAIN  
An  
An + 1  
Dn + 1  
tCD  
DATAOUT  
Qn  
(3)  
tCKLZ  
tOHZ  
OE  
3490 drw 11  
NOTES:  
1. For tCYC = min.; data out coincident with the rising edge of the subsequent write clock can occur. To ensure writing to the correct address location, the write must  
be repeated on the second write clock rising edge. If CE = VIL, invalid data will be written into array. The An+1 must be rewritten on the following cycle.  
2. OE LOW throughout.  
3. Transition is measured 0mV from Low or High-impedance voltage with the Output Test Load (Figure 2).  
4. For tCYC > min.; OE may be used to avoid data out coincident with the rising edge of the subsequent write clock. Use of OE will eliminate the need for the write to  
be repeated.  
6.492  
IDT70914S  
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM  
Commercial Temperature Range  
Functional Description  
transitionsoftheclocksignalallowingtheshortestpossiblerealizedcycle  
times.Clockenableinputsareprovidedtostalltheoperationoftheaddress  
and data input registers without introducing clock skew for very fast  
interleavedmemoryapplications.  
A HIGH on the CE input for one clock cycle will power down the  
internalcircuitrytoreducestaticpowerconsumption.  
The IDT70914 provides a true synchronous Dual-Port Static RAM  
interface.Registeredinputsprovideveryshortset-upandholdtimeson  
address,data,andallcriticalcontrolinputs.Allinternalregistersareclocked  
ontherisingedgeoftheclock signal.Anasynchronousoutputenableis  
providedtoeaseasynchronousbusinterfacing.  
The internal write pulse width is dependent on the LOW to HIGH  
Truth Table I: Read/Write Control(1)  
Inputs  
Outputs  
Synchronous(3)  
Asynchronous  
Mode  
CLK  
R/W  
I/O0-8  
High-Z  
CE  
H
L
OE  
X
X
L
Deselected, Power-Down  
X
DATAIN  
DATAOUT  
High-Z  
Selected and Write Enabled  
Read Selected and Data Output Enable Read  
Outputs Disabled  
L
H
X
L
X
H
3490 tbl 09  
Truth Table II: Clock Enable Function Table(1)  
Inputs  
Register Inputs  
Register Outputs(4)  
ADDR DATAOUT  
Mode  
CLK(3)  
ADDR  
DATAIN  
CLKEN(2)  
Load "1"  
Load "0"  
X
L
L
H
L
H
L
H
L
H
L
H
H
X
X
X
X
NC  
NC  
NC  
NC  
Hold (do nothing)  
3490 tbl 10  
NOTES:  
1. 'H' = HIGH voltage level steady state, 'h' = HIGH voltage level one set-up time prior to the LOW-to-HIGH clock transition, 'L' = LOW voltage level steady state 'l' = LOW  
voltage level one set-up time prior to the LOW-to-HIGH clock transition, 'X' = Don't care, 'NC' = No change  
2. CLKEN = VIL must be clocked in during Power-Up.  
3. ControlsignalsareinitiatedandterminatedontherisingedgeoftheCLK,dependingontheirinputlevel.WhenR/WandCEareLOW,awritecycleisinitiatedontheLOW-to-HIGHtransition  
oftheCLK.TerminationofawritecycleisdoneonthenextLOW-to-HIGHtransitionoftheCLK.  
4. The register outputs are internal signals from the register inputs being clocked in or disabled by CLKEN.  
6.42  
10  
Comme  
IDT70914S  
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM  
Commercial Temperature Range  
Ordering Information  
A
XXXXX  
99  
A
A
A
A
Device  
Type  
Power Speed  
Package  
Process/  
Temperature  
Range  
Tube or Tray  
Tape and Reel  
Blank  
8
Blank  
Commercial (0°C to +70°C)  
)
G(2  
Green  
J
PF  
68-pin PLCC (J68)  
80-pin TQFP (PN80)  
12  
15  
20  
Commercial Only  
Commercial Only  
Commercial Only  
Speed in nanoseconds  
S
Standard Power  
70914  
36K (4K x 9-Bit) Synchronous Dual-Port RAM  
3490 drw 12  
NOTES:  
1. IndustrialtemperaturerangeisavailableonselectedTQFPpackagesinstandardpower.Forspecificspeeds,packagesandpowerscontactyoursalesoffice.  
2. Greenpartsavailable.Forspecificspeeds,packagesandpowerscontactyoursalesoffice.  
LEADFINISH(SnPb)partsareinEOLprocess.ProductDiscontinuationNotice-PDN#SP-17-02  
Datasheet Document History  
3/10/99:  
Initiateddatasheetdocumenthistory  
Convertedtonewformat  
Cosmeticandtypographicalcorrections  
Page2and3Addedadditionalnotestopinconfigurations  
Changeddrawingformat  
6/7/99:  
11/10/99:  
5/24/00:  
Replaced IDT logo  
Page 4 Increasedstoragetemperatureparameter  
ClarifiedTA parameter  
Page 5 DCElectricalparameters–changedwordingfrom"open"to"disabled"  
Changed 200mVto0mVinnotes  
1/12/01:  
RemovedPGApinout(obsoletepackage)  
Changed cycle time of 12ns part from 17ns (58MHz) to 16ns (60MHz)  
Page 11 Removed "IDT" from orderable part number  
Page 1 Addedgreenpartsavailabilitytofeatures  
Page 11 Addedgreenindicatortoorderinginformation  
10/21/08:  
05/24/10:  
6.1412  
IDT70914S  
High-Speed 36K (4K x 9) Synchronous Dual-Port Static RAM  
Commercial Temperature Range  
Datasheet Document History (con't.)  
06/05/15:  
Pages1-12 RemovedMilitaryandIndustrialTemperatureRangesfromdatasheetheader  
Page 1 RemovedMilitaryspeedofferingsfromtheFeatures  
Page 2 Removed MIL-PRF 38535 QML support information  
Pages 2 ,3 &11 The package codes J68-1 and PN80-1 changed to J68 and PN80 respectively to match the standard  
packagecodes  
Page 4 RemovedthemilitaryandindustrialofferingsintheAbsoluteMaxRatings&theMaxOperatingTemptables  
Page 5 Removed the military and industrial offerings in the DC Elec Chars tables  
Page 6 CorrectedtypointheTypicalOutputDeratingdrawing  
Page 7 Removed military offering for the 20 & 25 speed grades in the AC Elec Chars table  
Removed the military temp range information from the AC Elec Chars table title  
Page 11 Added Tape and Reel to and removed military offering & 25ns speed grade from the Ordering Information  
Page 2 Changed diagram for the J68 pin configuration by rotating package pin labels and pin numbers 90 degrees  
clockwise to reflect pin1 orientation and added pin 1 dot at pin 1  
04/28/16:  
Removed all four chamfers from J68 and aligned the top and bottom pin labels in the standard direction  
Page 3 Changed diagram for the PN80 pin configuration by rotating package pin labels and pin numbers 90 degrees  
counter clockwise to reflect pin 1 orientation and added pin 1 dot at pin 1  
Added the IDT logo, changed the text to be in alignment with new diagram marking specs  
forallpinconfigurationsandupdatedfootnotereferencesfortheJ68&thePN80pinconfigurations  
Page 11 RemovedIndustrialtemprangeinformationfromtheOrderingInformation  
ProductDiscontinuationNotice-PDN#SP-17-02  
02/02/18:  
Last time buy expires June 15, 2018  
CORPORATE HEADQUARTERS  
6024 Silver Creek Valley Road  
San Jose, CA 95138  
for SALES:  
for Tech Support:  
408-284-2794  
DualPortHelp@idt.com  
800-345-7015 or 408-284-8200  
fax: 408-284-2775  
www.idt.com  
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.  
6.42  
12  

相关型号:

70914S12PFG8

HIGH SPEED 36K (4K X 9) SYNCHRONOUS DUAL-PORT RAM
IDT

70914S15J

PLCC-68, Tube
IDT

70914S15JG

Dual-Port SRAM, 4KX9, 15ns, CMOS, PQCC68, 0.950 X 0.950 X 0.170 INCH, GREEN, PLASTIC, LCC-68
IDT

70914S15JG8

HIGH SPEED 36K (4K X 9) SYNCHRONOUS DUAL-PORT RAM
IDT

70914S15JI

PLCC-68, Tube
IDT

70914S15PFG

Dual-Port SRAM, 4KX9, 15ns, CMOS, PQFP80, 14 X 14 X 1.40 MM, GREEN, TQFP-80
IDT

70914S15PFG8

Dual-Port SRAM, 4KX9, 15ns, CMOS, PQFP80, 14 X 14 X 1.40 MM, GREEN, TQFP-80
IDT

70914S20J

PLCC-68, Tube
IDT

70914S20JG

Dual-Port SRAM, 4KX9, 20ns, CMOS, PQCC68, 0.950 X 0.950 X 0.170 INCH, GREEN, PLASTIC, LCC-68
IDT

70914S20JG8

HIGH SPEED 36K (4K X 9) SYNCHRONOUS DUAL-PORT RAM
IDT

70914S20PFG

Dual-Port SRAM, 4KX9, 20ns, CMOS, PQFP80, 14 X 14 X 1.40 MM, GREEN, TQFP-80
IDT

70914S20PFG8

Dual-Port SRAM, 4KX9, 20ns, CMOS, PQFP80, 14 X 14 X 1.40 MM, GREEN, TQFP-80
IDT