IDT7052S35G [IDT]

Four-Port SRAM, 2KX8, 35ns, CMOS, CPGA108, 1.210 X 1.210 INCH, 0.160 INCH HEIGHT, PGA-108;
IDT7052S35G
型号: IDT7052S35G
厂家: INTEGRATED DEVICE TECHNOLOGY    INTEGRATED DEVICE TECHNOLOGY
描述:

Four-Port SRAM, 2KX8, 35ns, CMOS, CPGA108, 1.210 X 1.210 INCH, 0.160 INCH HEIGHT, PGA-108

静态存储器 内存集成电路
文件: 总11页 (文件大小:119K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
IDT7052S/L  
HIGH-SPEED  
2K x 8 FourPortTM  
STATIC RAM  
Features  
TTL-compatible; single 5V (±10%) power supply  
Available in 120 pin and 132 pin Thin Quad Flatpacks and  
108 pin PGA  
Military product compliant to MIL-PRF-38535 QML  
Industrial temperature range (–40°C to +85°C) is available  
for selected speeds  
High-speed access  
Military:25/35ns(max.)  
– Commercial:20/25/35ns (max.)  
Low-power operation  
IDT7052S  
Active:750mW(typ.)  
Standby: 7.5mW (typ.)  
IDT7052L  
Description  
Active:750mW(typ.)  
Standby: 1.5mW (typ.)  
True FourPort memory cells which allow simultaneous  
TheIDT7052isahigh-speed2Kx8FourPort™StaticRAMdesigned  
to be used in systems where multiple access into a common RAM is  
required.ThisFourPortStaticRAMoffersincreasedsystemperformance  
inmultiprocessorsystemsthathaveaneedtocommunicateinrealtimeand  
alsooffersaddedbenefitforhigh-speedsystemsinwhichmultipleaccess  
is requiredinthe same cycle.  
access of the same memory locations  
Fully asynchronous operation from each of the four ports:  
P1, P2, P3, P4  
Versatile control for write-inhibit: separate BUSY input to  
TheIDT7052is alsodesignedtobeusedinsystems whereon-chip  
hardware port arbitration is not needed. This part lends itself to those  
control write-inhibit for each of the four ports  
Battery backup operation2V data retention  
FunctionalBlockDiagram  
R/WP1  
CEP1  
R/WP4  
CEP4  
OEP1  
OEP4  
COLUMN  
I/O  
COLUMN  
I/O0P1-I/O7P1  
BUSYP1  
I/O0P4-I/O7P4  
I/O  
BUSYP4  
PORT 1  
PORT 4  
ADDRESS  
DECODE  
LOGIC  
ADDRESS  
DECODE  
LOGIC  
A0P1 - A10P1  
A0P4 - A10P4  
MEMORY  
ARRAY  
PORT 2  
ADDRESS  
DECODE  
LOGIC  
PORT 3  
ADDRESS  
DECODE  
LOGIC  
A0P2 - A10P2  
A0P3 - A10P3  
BUSYP2  
BUSYP3  
COLUMN  
I/O  
COLUMN  
I/O  
I/O0P2-I/O7P2  
I/O0P3-I/O7P3  
OEP2  
OEP3  
CEP2  
CEP3  
R/WP3  
R/WP2  
2674 drw 01  
JUNE 1999  
1
DSC 2674/9  
©1999IntegratedDeviceTechnology,Inc.  
IDT7052S/L  
High-Speed 2K x 8 FourPort™ Static RAM  
Military, Industrial and Commercial Temperature Ranges  
systems whichcannottoleratewaitstates oraredesignedtobeableto  
Fabricated using IDTs CMOS high-performance technology, this  
externallyarbitrateorwithstandcontentionwhenallportssimultaneously FourPortSRAMtypicallyoperatesononly750mWofpower.Low-power  
accessthesameFourPortRAMlocation. (L)versionsofferbatterybackupdataretentioncapability,witheachport  
TheIDT7052providesfourindependentportswithseparatecontrol, typicallyconsuming50µWfroma2Vbattery.  
address,andI/Opinsthatpermitindependent, asynchronousaccessfor  
TheIDT7052ispackagedinaceramic108-pinPinGridArray(PGA),  
readsorwritestoanylocationinmemory.Itistheusersresponsibilityto 120-pinThinQuadFlatpack(TQFP)and132-pinPlasticQuadFlatpack  
ensuredataintegritywhensimultaneouslyaccessingthesamememory (PQF).Militarygradeproductismanufacturedincompliancewiththelatest  
locationfromallports.Anautomaticpowerdownfeature,controlledbyCE, revision of MIL-PRF-38535 QML, making it ideally suited to military  
permitstheon-chipcircuitryofeachporttoenteraverylowpowerstandby temperatureapplicationsdemandingthehighestlevelofperformanceand  
powermode.  
reliability.  
PinConfigurations(1,2,3)  
81  
80  
83  
86  
88  
91  
94  
97  
77  
78  
82  
85  
89  
93  
74  
76  
79  
72  
73  
75  
69  
70  
71  
68  
65  
64  
62  
63  
61  
60  
59  
55  
52  
48  
44  
57  
56  
51  
49  
46  
43  
40  
37  
34  
32  
29  
54  
W
NC  
A
7
A
5
A
3
A
0
A
3
A
5
7
A
P3  
R/W  
P3  
R/  
P2  
NC  
A0  
P3  
12  
11  
P2  
P2  
P2  
P2  
P3  
P3  
84  
67  
66  
53  
BUSY  
OE  
P2  
OE  
P3  
BUSY  
A8  
P2  
A10  
P2  
A4  
P2  
A1  
P2  
A1  
P3  
A4  
P3  
A10  
P3  
A8  
P3  
P2  
P3  
87  
58  
50  
CE  
A2  
P1  
A1  
P1  
A9  
P2  
A6  
P2  
A2  
P2  
A2  
P3  
A6  
P3  
A9  
P3  
A1  
P4  
A2  
P4  
10  
09  
08  
07  
06  
05  
04  
03  
02  
01  
CE  
P3  
90  
92  
95  
96  
99  
47  
45  
42  
41  
38  
5
A
A3  
P1  
A0  
P1  
A0  
P4  
A3  
P4  
A5  
P4  
P1  
A6  
P1  
A4  
P1  
A4  
P4  
A6  
P4  
A10  
P4  
A10  
P1  
8
GND  
A
A7  
P4  
A8  
P1  
A7  
P1  
VCC  
IDT7052G  
G108-1(4)  
P4  
98  
39  
CE  
P4  
A9  
P4  
CE  
P1  
NC  
A9  
P1  
NC  
108-Pin PGA  
Top View(5)  
100  
102  
35  
OE  
P4  
OE  
P1  
GND  
R/W  
R/W  
I/O0  
P1  
P4  
P1  
101  
103  
106  
31  
36  
BUSY  
BUSY  
7
GND  
GND  
I/O  
I/O1  
P1  
P1  
P4  
P4  
104  
105  
1
5
6
4
7
8
12  
17  
21  
25  
28  
33  
I/O5  
P4  
I/O2  
P1  
I/O3  
P1  
I/O6  
P1  
I/O2  
P4  
I/O6  
P4  
GND  
VCC  
VCC  
GND VCC  
VCC  
107  
2
3
10  
13  
16  
19  
22  
24  
30  
I/O4  
P1  
I/O7  
P1  
I/O0  
P2  
I/O2  
P2  
I/O4  
P2  
I/O6  
P2  
I/O3  
P3  
I/O5  
P3  
I/O7  
P3  
I/O3  
P4  
I/O4  
P4  
I/O1  
P3  
108  
9
11  
14  
15  
18  
20  
23  
26  
27  
I/O1  
P2  
I/O5  
P2  
I/O4  
P3  
5
3
7
0
2
6
0
1
I/O  
NC  
B
I/O  
I/O  
P2  
I/O  
I/O  
I/O  
I/O  
I/O  
P4  
P1  
P2  
P3  
P3  
P3  
P4  
A
C
D
E
F
G
H
J
K
L
M
2674 drw 02  
INDEX  
NOTES:  
1. All VCC pins must be connected to the power supply.  
2. All GND pins must be connected to the ground supply.  
3. Package body is approximately 1.21 in x 1.21 in x .16 in.  
4. This package code is used to reference the package diagram.  
5. This text does not indicate orientation of the actual part-marking.  
2
6.42  
IDT7052S/L  
High-Speed 2K x 8 FourPort™ Static RAM  
Military, Industrial and Commercial Temperature Ranges  
Pin Configurations(1,2,3) (con't.)  
1
17  
18  
117  
116  
N/C  
OEP2  
BUSYP2  
N/C  
A0P1  
A1P1  
A2P1  
A3P1  
A4P1  
A5P1  
N/C  
BUSYP3  
N/C  
A0P4  
A1P4  
A2P4  
A3P4  
A4P4  
A5P4  
A6P4  
N/C  
A6P1  
N/C  
A10P1  
VCC  
A7P1  
A8P1  
A10P4  
GND  
A7P4  
A8P4  
IDT7052PQF  
PQ132-1  
(4)  
A
9P4  
A9P1  
N/C  
N/C  
132-Pin Plastic Quad Flatpack  
CEP4  
R/WP4  
OEP4  
BUSYP4  
N/C  
(5,6)  
Top View  
CEP1  
R/WP1  
OEP1  
BUSYP1  
N/C  
GND  
I/O0P1  
I/O1P1  
I/O2P1  
I/O3P1  
GND  
N/C  
I/O4P1  
I/O5P1  
N/C  
N/C  
I/O7P4  
I/O6P4  
I/O5P4  
GND  
I/O4P4  
I/O3P4  
I/O2P4  
N/C  
50  
51  
84  
N/C  
N/C  
83  
2674 drw 03  
1
2
3
4
5
6
7
8
N/C  
N/C  
BUSY  
A0P4  
N/C  
90  
89  
88  
87  
86  
85  
84  
83  
82  
81  
80  
79  
78  
77  
76  
75  
74  
73  
72  
71  
70  
69  
68  
67  
66  
65  
64  
63  
62  
61  
N/C  
OEP2  
P2  
P3  
BUSY  
A
1P4  
A
2P4  
3P4  
A
A
4P4  
5P4  
A
A
6P4  
A
10P4  
A0P1  
1P1  
A
A2P1  
A3P1  
9
4P1  
A
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
A5P1  
6P1  
A
A10P1  
CC  
V
A7P1  
A8P1  
GND  
A
7P4  
8PR  
A
A
9P4  
IDT7052PF  
PN120-1(4)  
9P1  
A
N/C  
120-Pin Thin Quad Flatpack  
Top View(5)  
CE  
P4  
N/C  
P1  
R/W  
P4  
CE  
OE  
P4  
R/WP1  
OEP1  
BUSYP1  
I/O0P1  
I/O1P1  
I/O2P1  
BUSY  
GND  
P4  
I/O  
7P4  
6P4  
I/O  
I/O  
5P4  
GND  
3P1  
I/O  
I/O  
4P4  
I/O  
3P4  
2PR  
I/O  
GND  
I/O4P1  
I/O5P1  
N/C  
NOTES:  
N/C  
N/C  
1. All VCC pins must be connected to the power supply.  
2. All GND pins must be connected to the ground supply.  
3. PQ132-1 package body is approximately  
.95 in x .95 in x .14 in.  
N/C  
PN120-1 package body is approximately  
14mm x 14mm x 1.4mm.  
2674 drw 04  
4. This package code is used to reference the package diagram.  
5. This text does not indicate orientation of the actual part-marking  
6. The side of the package containing pin1 may have a bevelled edge in place of the indicator dot..  
3
6.42  
IDT7052S/L  
High-Speed 2K x 8 FourPort™ Static RAM  
Military, Industrial and Commercial Temperature Ranges  
PinConfigurations(1,2)  
AbsoluteMaximumRatings(1)  
Symbol  
A0 P1 - A10 P1  
A P2 - A P2  
Pin Name  
Symbol  
Rating  
Commercial  
& Industrial  
Military  
Unit  
Address Lines - Port 1  
Address Lines - Port 2  
Address Lines - Port 3  
Address Lines - Port 4  
Data I/O - Port 1  
(2)  
VTERM  
Terminal Voltage  
with Respect to  
GND  
-0.5 to +7.0  
-0.5 to +7.0  
V
0
10  
A0 P3 - A10 P3  
A0 P4 - A10 P4  
I/O0 P1 - I/O7 P1  
I/O0 P2 - I/O7 P2  
I/O0 P3 - I/O7 P3  
I/O0 P4 - I/O7 P4  
R/W P1  
Temperature  
Under Bias  
-55 to +125  
-55 to +125  
50  
-65 to +135  
-65 to +150  
50  
oC  
oC  
TBIAS  
TSTG  
IOUT  
Storage  
Temperature  
Data I/O - Port 2  
mA  
DC Output Current  
Data I/O - Port 3  
2674 tbl 02  
Data I/O - Port 4  
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.  
Read/Write - Port 1  
Read/Write - Port 2  
Read/Write - Port 3  
Read/Write - Port 4  
Ground  
R/W P2  
R/W P3  
R/W P4  
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%.  
GND  
CE P1  
Chip Enable - Port 1  
Chip Enable - Port 2  
Chip Enable - Port 3  
Chip Enable - Port 4  
Output Enable - Port 1  
Output Enable - Port 2  
Output Enable - Port 3  
Output Enable - Port 4  
Write Disable - Port 1  
Write Disable - Port 2  
Write Disable - Port 3  
Write Disable - Port 4  
Power  
CE P2  
MaximumOperating  
CE P3  
TemperatureandSupplyVoltage(1,2)  
CE P4  
Ambient  
OE P1  
Grade  
Temperature  
-55OC to+125OC  
0OC to +70OC  
-40OC to +85OC  
GND  
0V  
Vcc  
OE P2  
Military  
5.0V + 10%  
5.0V + 10%  
OE P3  
Commercial  
Industrial  
0V  
OE P4  
0V  
5.0V + 10%  
BUSY P1  
BUSY P2  
BUSY P3  
BUSY P4  
VCC  
2674 tbl 04  
NOTES:  
1. This is the parameter TA.  
2. Industrial temperature: for specific speeds, packages and powers, contact your  
sales office  
RecommendedDCOperating  
Conditions  
2674 tbl 01  
NOTES:  
1. All VCC pins must be connected to the power supply.  
2. All GND pins must be connected to the ground supply  
Symbol  
Parameter  
Min.  
Typ. Max. Unit  
VCC  
Supply Voltage  
4.5  
5.0  
5.5  
0
V
V
V
Capacitance(1)  
(TA = +25°C, f = 1.0MHz) TQFP only  
GND Ground  
0
0
VIH  
VIL  
Input High Voltage  
Input Low Voltage  
2.2  
6.0(2)  
0.8  
____  
Symbol  
CIN  
Parameter  
Input Capacitance  
Output Capacitance  
Conditions(2)  
Max. Unit  
-0.5(1)  
V
____  
2674 tbl 05  
VIN = 0V  
9
pF  
NOTES:  
1. VIL > -1.5V for pulse width less than 10ns.  
2. VTERM must not exceed Vcc + 10%.  
COUT  
VOUT = 0V  
10  
pF  
2674 tbl 03  
NOTES:  
1. This parameter is determined by device characterization but is not  
production tested.  
2. 3dV references the interpolated capacitance when the input and  
the output signals switch from 0V to 3V or from 3V to 0V.  
4
6.42  
IDT7052S/L  
High-Speed 2K x 8 FourPort™ Static RAM  
Military, Industrial and Commercial Temperature Ranges  
DC Electrical Characteristics Over the Operating  
Temperature and Supply Voltage Range(1,5,6) (VCC = 5.0V ± 10%)  
7052X20  
Com'l Only  
7052X25  
Com'l &  
Military  
7052X35  
Com'l &  
Military  
Symbol  
Parameter  
Condition  
Version  
Typ.(2)  
Max.  
Typ.(2)  
Max.  
Typ.(2)  
Max.  
Unit  
ICC1  
Operating Power  
Supply Current  
(All Ports Active)  
COM'L.  
S
150  
150  
300  
250  
150  
150  
300  
250  
150  
150  
300  
250  
CE = VIL  
mA  
L
Outputs Open  
(3)  
f = 0  
____  
____  
____  
____  
MIL. &  
IND.  
S
L
150  
150  
360  
300  
150  
150  
360  
300  
ICC2  
Dynamic Operating  
Current  
COM'L.  
S
L
240  
210  
370  
325  
225  
195  
350  
305  
210  
180  
335  
290  
CE = VIL  
mA  
mA  
Outputs Open  
(4)  
(All Ports Active)  
f = fMAX  
____  
____  
____  
____  
MIL. &  
IND.  
S
L
225  
195  
400  
340  
210  
180  
395  
330  
ISB  
Standby Current  
(All Ports - TTL Level  
Inputs)  
COM'L.  
S
L
70  
60  
95  
80  
45  
40  
85  
70  
40  
35  
75  
60  
CE = VIH  
(4)  
f = fMAX  
____  
____  
____  
____  
MIL. &  
IND.  
S
L
45  
40  
115  
85  
40  
35  
110  
80  
ISB1  
Full Standby Current  
(All Ports - All CMOS  
Level Inputs)  
All Ports  
COM'L.  
S
L
1.5  
0.3  
15  
1.5  
0.3  
15  
1.5  
0.3  
15  
mA  
CE > VCC - 0.2V  
VIN > VCC - 0.2V or  
VIN < 0.2V, f = 0(3)  
1.5  
1.5  
1.5  
____  
____  
____  
____  
MIL. &  
IND.  
S
L
1.5  
0.3  
30  
4.5  
1.5  
0.3  
30  
4.5  
2674 tbl 06  
NOTES:  
1. 'X' in part number indicates power rating (S or L).  
2. VCC = 5V, TA = +25°C and are not production tested.  
3. f = 0 means no address or control lines change.  
4. At f = fMAX, address and control lines (except Output Enable) are cycling at the maximum frequency read cycle of 1/tRC, and using AC Test Conditions” of input  
levels of GND to 3V.  
5. For the case of one port, divide the appropriate current above by four.  
6. Industrial temperature: for specific speeds, packages and powers contact your sales office.  
DC Electrical Characteristics Over the Operating  
Temperature and Supply Voltage Range (VCC = 5.0V ± 10%)  
7052S  
7052L  
Symbol  
|ILI|  
Parameter  
Test Conditions  
VCC = 5.5V, VIN = 0V to VCC  
CE = VIH, VOUT = 0V to VCC  
IOL = 4mA  
Min.  
Max.  
10  
Min.  
Max.  
5
Unit  
µA  
µA  
V
(1)  
___  
___  
Input Leakage Current  
___  
___  
___  
___  
|ILO|  
Output Leakage Current  
Output Low Voltage  
Output High Voltage  
10  
5
VOL  
0.4  
0.4  
___  
___  
VOH  
IOH = -4mA  
2.4  
2.4  
V
2674 tbl 07  
NOTE:  
1. At Vcc < 2.0V input leakages are undefined.  
5
6.42  
IDT7052S/L  
High-Speed 2K x 8 FourPort™ Static RAM  
Military, Industrial and Commercial Temperature Ranges  
Data Retention Characteristics Over All Temperature Ranges(4)  
(L Version Only) VLC = 0.2V, VHC = VCC - 0.2V  
Symbol  
VDR  
ICCDR  
Parameter  
Test Condition  
Min.  
Typ.(1)  
Max.  
Unit  
V
___  
___  
VCC for Data Retention  
VCC = 2V  
2.0  
___  
Data Retention Current  
µA  
CE > VHC  
Com'l.  
25  
600  
___  
VIN > VHC or < VLC  
Mil. & Ind.  
25  
1800  
(3)  
___  
___  
tCDR  
Chip Deselect to Data Retention Time  
Operation Recovery Time  
0
ns  
(3)  
(2)  
___  
___  
tR  
tRC  
ns  
2674 tbl 08a  
NOTES:  
1. VCC = 2V, TA = +25°C  
2. tRC = Read Cycle Time  
3. This parameter is guaranteed but not production tested.  
4. Industrial temperature: For other speeds, packages and powers contact your sales office.  
Low VCC Data Retention Waveform  
DATA RETENTION MODE  
VCC  
4.5V  
VDR  
4.5V  
2V  
CDR  
R
t
t
VDR  
VIH  
CE  
VIH  
2674 drw 05  
AC Test Conditions  
Input Pulse Levels  
GND to 3.0V  
5V  
893  
5V  
Input Rise/Fall Times  
5ns Max.  
1.5V  
893Ω  
Input Timing Reference Levels  
Output Reference Levels  
Output Load  
DATAOUT  
347Ω  
DATAOUT  
347Ω  
1.5V  
5pF*  
Figures 1 and 2  
30pF  
2674 tbl 08b  
,
2674 drw 06  
Figure 1. AC Output Test Load  
Figure 2. Output Test Load  
(for tLZ, tHZ, tWZ, tOW)  
*Including scope and jig  
6
6.42  
IDT7052S/L  
High-Speed 2K x 8 FourPort™ Static RAM  
Military, Industrial and Commercial Temperature Ranges  
AC Electrical Characteristics Over the  
Operating Temperature andSupplyVoltage(3,4)  
7052X20  
Com'l Only  
7052X25  
Com'l &  
Military  
7052X35  
Com'l &  
Military  
Symbol  
Parameter  
Min.  
Max.  
Min.  
Max.  
Min.  
Max.  
Unit  
READ CYCLE  
____  
____  
____  
tRC  
tAA  
tACE  
tAOE  
tOH  
tLZ  
Read Cycle Time  
20  
25  
35  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
____  
____  
____  
Address Access Time  
Chip Enable Access Time  
Output Enable Access Time  
20  
20  
25  
25  
35  
35  
____  
____  
____  
____  
____  
____  
10  
15  
25  
____  
____  
____  
Output Hold from Address Change  
Output Low-Z Time(1,2)  
0
0
0
____  
____  
____  
5
5
5
Output High-Z Time(1,2)  
12  
15  
15  
____  
____  
.____  
tHZ  
tPU  
tPD  
Chip Enable to Power Up Time(2)  
Chip Disable to Power Down Time(2)  
0
0
0
____  
____  
____  
____  
____  
____  
20  
25  
35  
ns  
2674 tbl 09  
NOTES:  
1. Transition is measured ±200mV 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. 'X' in part number indicates power rating (S or L)  
4. Industrial temperature: for specific speeds, packages and powers contact your sales office.  
Timing Waveform of Read Cycle No. 1, Any Port(1)  
tRC  
ADDRESS  
tAA  
tOH  
PREVIOUS DATA VALID  
tOH  
DATA VALID  
DATAOUT  
2674 drw 07  
NOTES:  
1. R/W = VIH, OE = VIL and CE = VIL.  
Timing Waveform of Read Cycle No. 2, Any Port(1,2)  
tACE  
CE  
tAOE  
tHZ  
OE  
tLZ  
tHZ  
DATAOUT  
VALID DATA  
tLZ  
tPU  
tPD  
ICC  
CURRENT  
50%  
50%  
ISB  
2674 drw 08  
NOTES:  
1. R/W = VIH for Read Cycles.  
2. Addresses valid prior to or coincident with CE transition LOW.  
7
6.42  
IDT7052S/L  
High-Speed 2K x 8 FourPort™ Static RAM  
Military, Industrial and Commercial Temperature Ranges  
AC Electrical Characteristics Over the  
OperatingTemperatureandSupplyVoltage(7,8)  
7052X20  
Com'l Only  
7052X25  
Com'l &  
Military  
7052X35  
Com'l &  
Military  
Symbol  
Parameter  
Min.  
Max.  
Min.  
Max.  
Min.  
Max.  
Unit  
WRITE CYCLE  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
____  
tWC  
tEW  
tAW  
tAS  
Write Cycle Time  
20  
15  
15  
0
25  
20  
20  
0
35  
30  
30  
0
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
Chip Enable to End-of-Write(3)  
Address Valid to End-of-Write  
Address Set-up Time  
(3)  
tWP  
tWR  
tDW  
tHZ  
Write Pulse Width  
15  
0
20  
0
30  
0
Write Recovery Time  
Data Valid to End-of-Write  
Output High-Z Time(1,2)  
Data Hold Time  
15  
15  
20  
____  
____  
____  
15  
15  
15  
____  
____  
____  
tDH  
tWZ  
tOW  
0
0
0
(1,2)  
____  
____  
____  
Write Enable to Output in High-Z  
Output Active from End-of-Write(1,2)  
12  
15  
15  
____  
____  
____  
0
0
0
(4)  
____  
____  
____  
WDD  
t
Write Pulse to Data Delay  
35  
30  
45  
35  
55  
45  
Write Data Valid to Read Data Delay(4)  
____  
____  
____  
tWDD  
BUSY INPUT TIMING  
tWB  
Write to BUSY(5)  
tWH  
Write Hold After BUSY(6)  
____  
____  
____  
____  
____  
____  
0
0
0
ns  
15  
15  
20  
ns  
2674 tbl 10  
NOTES:  
1. Transition is measured ±200mV 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. If OE = VIL during a R/W controlled write cycle, the write pulse width must be the larger of tWP or (tWZ + tDW) to allow the I/O drivers  
to turn off data to be placed on the bus for the required tDW. If OE = VIH during an R/W controlled write cycle, this requirement  
does not apply and the write pulse can be as short as the specified tWP. Specified for OE = VIH (refer to Timing Waveform of Write Cycle, Note 8).  
4. Port-to-port delay through RAM cells from writing port to reading port, refer to Timing Waveform of Write with Port-to-Port Read.  
5. To ensure that the write cycle is inhibited on port "A" during contention from Port "B". Port "A" may be any of the four ports and Port "B" is any other port.  
6. To ensure that a write cycle is completed on port "A" after contention from Port "B". Port "A" may be any of the four ports and Port "B" is any other port.  
7. 'X' in part number indicates power rating.  
8. Industrial temperature: for specific speeds, packages and powers contact your sales office.  
8
6.42  
IDT7052S/L  
High-Speed 2K x 8 FourPort™ Static RAM  
Military, Industrial and Commercial Temperature Ranges  
Timing Waveform of Write Cycle No. 1, R/W Controlled Timing(5,8)  
tWC  
ADDRESS  
(6)  
tAS  
OE  
(3)  
tAW  
tWR  
(9)  
CE  
(7)  
(2)  
tHZ  
tWP  
R/W  
(7)  
(7)  
tWZ  
tHZ  
tLZ  
tOW  
(4)  
(4)  
DATAOUT  
DATAIN  
tDH  
tDW  
2674 drw 09  
Timing Waveform of Write Cycle No. 2, CE Controlled Timing(1, 5)  
tWC  
ADDRESS  
tAW  
CE(9)  
(3)  
(6)  
(2)  
tAS  
tEW  
tWR  
R/W  
tDW  
tDH  
DATAIN  
2674 drw 10  
NOTES:  
1. R/W or CE = VIH during all address transitions.  
2. A write occurs during the overlap (tEW or tWP) of a CE = VIL and a R/W = VIL.  
3. tWR is measured from the earlier of CE or R/W = VIH to the end of write cycle.  
4. During this period, the I/O pins are in the output state, and input signals must not be applied.  
5. If the CE = VIL transition occurs simultaneously with or after the R/W = VIL transition, the outputs remain in the High-impedance state.  
6. Timing depends on which enable signal is asserted last, CE or R/W.  
7. Transition is measured ±200mV from Low or High-impedance voltage with the Output Test Load (Figure 2). This parameter is guaranteed but is not production  
tested.  
8. If OE = VIL during a R/W controlled write cycle, the write pulse width must be the larger of tWP or (tWZ + tDW) to allow the I/O drivers to turn off data to be placed  
on the bus for the required tDW. If OE = VIH during an R/W controlled write cycle, this requirement does not apply and the write pulse can be as short as the  
specified tWP.  
9
6.42  
IDT7052S/L  
High-Speed 2K x 8 FourPort™ Static RAM  
Military, Industrial and Commercial Temperature Ranges  
Timing Waveform of Write with Port-to-Port Read(1,2,3)  
tWC  
MATCH  
ADDR"A"  
tWP  
R/W"A"  
DW  
DH  
t
t
DATAIN"A"  
ADDR"B"  
VALID  
MATCH  
tWDD  
VALID  
DATA"B"  
tDDD  
NOTES:  
2674 drw 11  
1. Assume BUSY input = VIH and CE = VIL for the writing port.  
2. OE = VIL for the reading ports.  
3. All timing is the same for left and right ports. Port "A" may be either of the four ports and Port "B" is any other port.  
Timing Waveform of Write with BUSY Input  
tWP  
R/W"A"  
tWH  
tWB  
BUSY"B"  
R/W"B"  
(1)  
,
2674 drw 12  
NOTES:  
1. BUSY is aserted on Port "B" blocking R/W"B" until BUSY"B" goes HIGH.  
Truth Table I – Read/Write Control(3)  
FunctionalDescription  
TheIDT7052providesfourportswithseparatecontrol,address,and  
I/Opinsthatpermitindependentaccessforreadsorwritestoanylocation  
in memory. These devices have an automatic power down feature  
controlled by CE. The CE controls on-chip power down circuitry that  
permitstherespectiveporttogointostandbymodewhennotselected(CE  
= VIH). When a port is enabled, access to the entire memory array is  
permitted.EachporthasitsownOutputEnablecontrol(OE).Intheread  
mode, the ports OE turns on the output drivers when set LOW. READ/  
WRITEconditionsareillustratedinthetablebelow.  
Any Port(1)  
0-7  
D
R/W  
Function  
CE  
OE  
X
H
X
Z
Z
Port Deselected: Power-Down  
P1  
P2  
P3  
P4 IH  
CE =CE =CE =CE =V  
X
H
X
SB  
SB1  
Power Down Mode I or I  
Data on port written into memory(2)  
Data in memory output on port  
Outputs Disabled  
IN  
DATA  
L
H
X
L
L
X
X
L
OUT  
DATA  
H
Z
2674 tbl 11  
NOTES:  
1. "H" = VIH, "L" = VIL, "X" = Dont Care, "Z "= High Impedance  
2. If BUSY = VIL, write is blocked.  
3. For valid write operation, no more than one port can write to the same address  
location at the same time.  
10  
6.42  
IDT7052S/L  
High-Speed 2K x 8 FourPort™ Static RAM  
Military, Industrial and Commercial Temperature Ranges  
OrderingInformation  
IDT  
XXXX  
A
999  
A
A
Device  
Type  
Power Speed  
Package  
Process/  
Temperature  
Range  
Blank  
Commercial (0°C to +70°C)  
Industrial (-40°C to +85°C  
Military (-55°C to +125°C)  
I(1)  
B
Compliant to MIL-PRF-38535 QML  
G
PQF  
PF  
108-Pin Pin Grid Array (G108-1)  
132-Pin Plastic Quad Flatpack (PQ132-1)  
120-Pin Thin Quad Plastic Flatpack (PN120-1)  
20  
25  
35  
Commercial Only  
Commercial & Military  
Commercial & Military  
Speed  
in nanoseconds  
L
S
Low Power  
Standard Power  
7052  
16K (2K x 8) FourPort RAM  
2674 drw 13  
NOTE:  
1. Industrial temperature range is available.  
For specific speeds, packages and powers contact your sales office.  
DatasheetDocumentHistory  
1/18/99:  
Initiateddatasheetdocumenthistory  
Convertedtonewformat  
Cosmetictypographicalcorrections  
Addedadditionalnotestopinconfigurations  
Changeddrawingformat  
6/4/99:  
Page1 Corrected DSC number  
CORPORATE HEADQUARTERS  
2975StenderWay  
Santa Clara, CA 95054  
for SALES:  
800-345-7015 or 408-727-6116  
fax: 408-492-8674  
for Tech Support:  
831-754-4613  
DualPortHelp@idt.com  
www.idt.com  
The IDT logo is a registered trademark of Integrated Device Technology, Inc.  
11  
6.42  

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