upd44645184af5-fq1-a Renesas Electronics Corporation., upd44645184af5-fq1-a Datasheet - Page 19

• Manufacturer Part Number: upd44645184af5-fq1-a
• Description: 72m-bit Qdrtm Ii Sram 4-word Burst Operation
• Manufacturer: Renesas Electronics Corporation.

Read and Write Timing
Remarks 1. Q00 refers to output from address A0+0.
Data out
Address
Data in
CQ#
CQ
C#
W#
C
K#
R#
K
2. Outputs are disabled (high impedance) 3.5 clock cycles after the last READ (R# = LOW) is input in the
3. In this example, if address A2 = A1, data Q20 = D10, Q21 = D11, Q22 = D12 and Q23 = D13.
Qx2
Q01 refers to output from the next internal burst address following A0,i.e.,A0+1.
sequences of [READ]-[NOP]-[NOP], [READ]-[WRITE]-[NOP] and [READ]-[NOP]-[WRITE].
Write data is forwarded immediately as read results.
1
TKHCH
NOP
TKHKL
TKHKL
Qx3
TIVKH
TKLKH
TAVKH TKHAX
TKLKH
A0
2
TCHCQX
READ
TCHCQV
TKHKH
TKHKH
TKHIX
TCHCQX
TCHCQV
Preliminary Data Sheet M19959EJ1V0DS
3
A1
TCHQX1
TKHK#H TK#HKH
WRITE
μ
PD44645094A-A, 44645184A-A, 44645364A-A
TDVKH
TCHQX
Q00
D10
A2
4
READ
TKHDX
TCHQV
TIVKH
TCHQX
Q01
D11
TCHQV
Q02
D12
A3
5
TCQHCQ#H
WRITE
TKHK#H TK#HKH
TKHIX
Q03
D13
TCQ#HCQH
Q20
D30
6
TKHCH
NOP
TDVKH TKHDX
Q21
D31
TCQHQX
Q22
D32
7
TCQHQV
Q23
D33
TCHQZ
19