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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
tAD tAD
tAD
tRDS
tRDAC2
tCEAC
tRDH
tCE2tCE1
tRDD2tRDD1
tAD tAD tAD tAD
tACC2
tRDS
tRDH
tACCB
tRDS
tRDH
tACCB
tRDS
tRDH
tACCB
∗1
∗1 tRDH 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
∗1eBUS_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)
Pxx, Rxx (output)
Kxx
(K-port interrupt input)
t
INPS
Valid input
t
KINW
t
INPH
t
OUTD