Epson S1C33L03 用户手册
8 ELECTRICAL CHARACTERISTICS
S1C33L03 PRODUCT PART
EPSON
A-95
A-1
A-8
Burst ROM read cycle
BCLK
A[23:2]
A[1:0]
#CEx
#RD
D[15:0]
SRAM read cycle
Burst cycle
Burst cycle
Burst cycle
t
AD
t
AD
t
AD
t
RDS
t
RDAC2
t
CEAC
t
RDH
t
CE2
t
CE1
t
RDD2
t
RDD1
;;;;;
;;;;;
t
AD
t
AD
t
AD
t
AD
t
ACC2
t
RDS
t
RDH
;;;;;
;;;;;
t
ACCB
t
RDS
t
RDH
;;;;;
;;;;;
t
ACCB
t
RDS
t
RDH
;;;;;
;;;;;
t
ACCB
∗
1
∗
1
t
RDH
is measured with respect to the first signal change (negation) from among the #RD, #CEx and
A[23:0] signals.
#BUSREQ, #BUSACK and #NMI timing
BCLK
#BUSREQ
#BUSACK
eBUS_OUT signals
∗
1
eBUS_OUT signals
∗
1
#NMI
t
BRQS
Valid input
t
NMIW
t
BRQH
;;;;;
;;;;;
t
BAKD
t
Z2E
t
B2Z
;;;
;;;
∗
1 eBUS_OUT indicates the following pins:
A[23:0], #RD, #WRL, #WRH, #HCAS, #LCAS, #CE[17:4], D[15:0]
Input, output and I/O port timing
BCLK
Kxx, Pxx
(input: data read
from the port)
(input: data read
from the port)
Pxx, Rxx (output)
Kxx
(K-port interrupt input)
(K-port interrupt input)
t
INPS
Valid input
t
KINW
t
INPH
;;;;;
;;;;;
t
OUTD
;;;;
;;;;