ZiLOG Z80 Handbook page 272

TIMING MEASUREMENTS ARE MADE AT THE FOLLOWING
VOLTAGES, UNLESS OTHERWISE SPECIFIED:
1 "0"
CLOCK 4.2 V 0.8 V
OUTPUT 2.0 V 0.8 V
INPUT 2.OV 0.8V
TWIDH
A0-15
A0-15
D0-
M1
(IN
OUT T
RFSH
0
FLOAT AV ±0.5V
TW*LI
TDIADI -- -- - TS^IDI ---
_-_ _ TH TDIDI TH
TS4V(D)
DLIMII TDHIMII -
z
11 11
TDLIRFI
I H(kFl l FtC)
l I I i^ T
DL&MRI
7
MREQ TACM
TDL,(RD
RD
WR
IORQ
RD
WR
WAIT
HALT
INT
NMI
BUSRQ
BUSAK
RESET
M
TDH(bIMRI
TDHO(RD)
TDLI(IR)
TD4(IR)
-1
TW (NMLI
TS(RS)I
I
TH
TDH(-b IRD)
TDL,IWRI
TSIBQI
Fig. A-3. Z-80 ac timing diagram.
TDHif (MRI
DL(BA)
FIADI
T F(D)
TCAF
TCA
CDF
THI MRI
DH(bIWRI
DH4(IR)
DHq(RD)
DH(DIWRI
TDHIBAI
281