ml675050 Oki Semiconductor, ml675050 Datasheet - Page 41

• Manufacturer Part Number: ml675050
• Description: Arm7tdmi Based Micro-controller For Ic Card Reader/writer
• Manufacturer: Oki Semiconductor

ELECTRICAL CHARACTERISTICS (AC CHARACTERISTICS)
(11) External ROM, SRAM Timing (4/5)
OKI Semiconductor
R O M C S _ N /
R A M C S _ N
R O M C S _ N /
R A M C S _ N
X D [1 5 :0 ]
X A [2 3 : 0 ]
B S 0 _ N /
X D [1 5 :0 ]
X A [2 3 :0 ]
B S 1 _ N
B S 0 _ N /
External ROM, external RAM read cycle (page read)
External ROM, external RAM read cycle
(when a 32-bit read is performed during continuous read on a 16-bit bus)
R D _ N
B S 1 _ N
R D _ N
t
t
B S R A C C
X A R A C C
A 1
t
X D IS 2
t
t
t
X A R A C C
B S R A C C
C S R A C C
D 1
t
X D I H 2
t
R D W
t
X D IS 1
t
C S P A C C
t
P R D W
A 1
t
t
B S P A C C
X A P A C C
D 1
A 2
t
t
X A R H 1
B S R H 1
t
X D IS 2
t
X D IH 1
D 2
t
X D IH 2
t
B S P A C C
t
X A P A C C
A 3
t
t
X A R A C C
B S R A C C
t
X D IS 2
t
R D W
t
X D IS 1
D 3
t
A 2
X D IH 2
D 2
t
t
X A P A C C
B S P A C C
t
X D IH 1
A 4
t
t
t
C S R H
X A R H 2
B S R H 2
t
X D IS 1
FEDL675050-02
D 4
ML675050
t
t
X D IH 1
t
B S R H 2
t
X A R H 2
C S R H
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