CY7C1049BN
Document #: 001-06501 Rev. **
Page 2 of 10
Note:
1. For guidelines on SRAM system design, please refer to the ‘System Design Guidelines’ Cypress application note, available on the internet at www.cypress.com.
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature ................................. –65
°C to +150°C
Ambient Temperature with
Power Applied............................................. –55
°C to +125°C
Supply Voltage on VCC to Relative GND
[2] .... –0.5V to +7.0V
DC Voltage Applied to Outputs
in High Z State[2] ....................................–0.5V to VCC + 0.5V
DC Input Voltage[2].................................–0.5V to VCC + 0.5V
Current into Outputs (LOW)......................................... 20 mA
Static Discharge Voltage............................................ >2001V
(per MIL-STD-883, Method 3015)
Latch-Up Current ..................................................... >200 mA
Selection Guide
7C1049BN-12 7C1049BN-15 7C1049BN-17 7C1049BN-20 7C1049BN-25
Maximum Access Time (ns)
12
15
17
20
25
Maximum Operating Current (mA)
240
220
195
185
180
Maximum CMOS Standby
Current (mA)
Com’l
8
8
8
8
8
Com’l/Ind’l L-
-
0.5
0.5
0.5
Ind’l
-
-
-
9
9
Operating Range
Range
Ambient
Temperature
VCC
Commercial
0
°C to +70°C
4.5V–5.5V
Industrial
–40
°C to +85°C
Electrical Characteristics Over the Operating Range
Parameter
Description
Test Conditions
7C1049B-12
7C1049B-15
7C1049B-17
Min.
Max.
Min.
Max.
Min.
Max.
Unit
VOH
Output HIGH Voltage
VCC = Min., IOH = –4.0 mA
2.4
2.4
2.4
V
VOL
Output LOW Voltage
VCC = Min., IOL = 8.0 mA
0.4
0.4
0.4
V
VIH
Input HIGH Voltage
2.2
VCC+0.3
2.2
VCC+0.3
2.2
VCC+0.3
V
VIL
Input LOW Voltage[2]
–0.3
0.8
–0.3
0.8
–0.3
0.3
V
IIX
Input Load Current
GND < VI < VCC
–1
+1
–1
+1
–1
+1
µA
IOZ
Output Leakage
Current
GND < VOUT < VCC,
Output Disabled
–1
+1
–1
+1
–1
+1
µA
ICC
VCC Operating
Supply Current
VCC = Max.,
f = fMAX = 1/tRC
240
220
195
mA
ISB1
Automatic CE
Power-Down Current
—TTL Inputs
Max. VCC, CE > VIH
VIN > VIH or
VIN < VIL, f = fMAX
40
40
40
mA
ISB2
Automatic CE
Power-Down Current
—CMOS Inputs
Max. VCC,
CE > VCC – 0.3V,
VIN > VCC – 0.3V,
or VIN < 0.3V, f = 0
Com’l
8
8
8
mA
Com’l
L
-
-
0.5
mA
Ind’l
-
-
8
mA
Ind’l
L
-
-
0.5
mA
Note:
2. Minimum voltage is–2.0V for pulse durations of less than 20 ns.
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