CY7C1338B 데이터 시트보기 (PDF) - Cypress Semiconductor
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CY7C1338B Datasheet PDF : 18 Pages
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CY7C1338B
Write Cycle Descriptions[1, 2, 3, 4]
Function
Read
Read
Write Byte 0 - DQ[7:0]
Write Byte 1 - DQ[15:8]
Write Bytes 1, 0
Write Byte 2 - DQ[23:16]
Write Bytes 2, 0
Write Bytes 2, 1
Write Bytes 2, 1, 0
Write Byte 3 - DQ[31:24]
Write Bytes 3, 0
Write Bytes 3, 1
Write Bytes 3, 1, 0
Write Bytes 3, 2
Write Bytes 3, 2, 0
Write Bytes 3, 2, 1
Write All Bytes
Write All Bytes
GW
BWE
BW3
BW2
BW1
BW0
1
1
X
X
X
X
1
0
1
1
1
1
1
0
1
1
1
0
1
0
1
1
0
1
1
0
1
1
0
0
1
0
1
0
1
1
1
0
1
0
1
0
1
0
1
0
0
1
1
0
1
0
0
0
1
0
0
1
1
1
1
0
0
1
1
0
1
0
0
1
0
1
1
0
0
1
0
0
1
0
0
0
1
1
1
0
0
0
1
0
1
0
0
0
0
1
1
0
0
0
0
0
0
X
X
X
X
X
Maximum Ratings
Current into Outputs (LOW) ........................................ 20 mA
(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 VDD Relative to GND ............... –0.5V to +4.6V
DC Voltage Applied to Outputs
in High Z State[5]...............................................–0.5V to VDD + 0.5V
DC Input Voltage[5]...........................................–0.5V to VDD + 0.5V
Static Discharge Voltage .......................................... >2001V
(per MIL-STD-883, Method 3015)
Latch-Up Current.................................................... >200 mA
Operating Range
Range
Com’l
Ind’l
Ambient
Temperature[6]
0°C to +70°C
–40°C to +85°C
VDD
3.135V to 3.6V
VDDQ
2.375V to VDD
Notes:
4. When a write cycle is detected, all I/Os are three-stated, even during byte writes.
5. Minimum voltage equals –2.0V for pulse durations of less than 20 ns.
6. TA is the case temperature.
Document #: 38-05143 Rev. **
Page 7 of 18
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