參數(shù)資料
型號(hào): UPD44321362GF-A50
廠商: NEC Corp.
英文描述: 32M-BIT ZEROSB SRAM PIPELINED OPERATIO
中文描述: 32兆位ZEROSB SRAM的流水線OPERATIO
文件頁(yè)數(shù): 15/24頁(yè)
文件大?。?/td> 299K
代理商: UPD44321362GF-A50
15
Data Sheet M16024EJ5V0DS
μ
PD44321182, 44321362
Read and Write Cycle
Parameter
Symbol
-A50 (200 MHz)
Unit
Notes
Standard
Alias
MIN.
MAX.
Cycle time
TKHKH
TCYC
5
ns
Clock access time
TKHQV
TCD
3.2
ns
Output enable access time
TGLQV
TOE
3.2
ns
Clock high to output active
TKHQX1
TDC1
1.5
ns
1, 2
Clock high to output change
TKHQX2
TDC2
1.5
ns
Output enable to output active
TGLQX
TOLZ
0
ns
1
Output disable to output High-Z
TGHQZ
TOHZ
0
3.2
ns
1
Clock high to output High-Z
TKHQZ
TCZ
1.5
3.2
ns
1, 2
Clock high pulse width
TKHKL
TCH
1.8
ns
Clock low pulse width
TKLKH
TCL
1.8
ns
Setup times
Address
TAVKH
TAS
1.5
ns
Address advance
TADVVKH
TADVS
Clock enable
TEVKH
TCES
Chip enable
TCVKH
TCSS
Data in
TDVKH
TDS
Write enable
TWVKH
TWS
Hold times
Address
TKHAX
TAH
0.5
ns
3
Address advance
TKHADVX
TADVH
(1.0)
(–)
Clock enable
TKHEX
TCEH
Chip enable
TKHCX
TCSH
Data in
TKHDX
TDH
Write enable
TKHWX
TWH
Power down entry time
TZZE
TZZE
10
ns
Power down recovery time
TZZR
TZZR
10
ns
Notes 1.
Transition is measured
±
200 mV from steady state.
2.
To avoid bus contention, the output buffers are designed such that TKHQZ (device turn-off) is faster than
TKHQX1 (device turn-on) at a given temperature and voltage. The specs as shown do not imply bus
contention because TKHQX1 is a min. parameter that is worse case at totally different conditions (T
A
min.,
V
DD
max.) than TKHQZ, which is a max. parameter (worse case at T
A
max., V
DD
min.).
3.
These values apply when V
DD
= 3.3 V
±
0.165 V with a 3.3 V LVTTL interface, or when V
DD
= 2.5 V
±
0.125 V with a 2.5 V LVTTL interface.
Values in parentheses apply when V
DD
= 3.3 V
±
0.165 V with a 2.5 V LVTTL interface.
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