UPD72001-A8 NEC [NEC], UPD72001-A8 Datasheet - Page 22

• Manufacturer Part Number: UPD72001-A8
• Description: MULTI-PROTOCOL SERIAL CONTROLLERS
• Manufacturer: NEC [NEC]

Serial control:
22
Transmit/receive data cycle
STR
STR
clock pulse width
STR
TR
R
R
R
T
T
RxC
RxC
RD
WR
X
X
X
X
X
Note Of STR
D
D
D setup time (vs. STR
D hold time (vs. STR
D
X
C
X
X
X
C, TR
C, TR
C, TR
Note
Note
INT delay time
DRQT
T
DRQR
X
DRQT
D delay time
TxD delay time
X
X
X
C input clock cycle
C input
C
Parameter
X
INT delay time
DRQR
delay time
X
X
X
C and TR
delay time
delay time
delay time
X
delay time
X
C, TR
X
C, TR
X
X
C, the one used as the receive clock.
C )
X
C )
Symbol
t
t
t
t
t
t
t
t
t
t
t
DTCTD1
DTCTD2
DTCTD3
DRDTD1
DRDTD2
t
t
SRDRC
HRCRD
DTDDQ
DRCDQ
t
t
DTDIQ
DRCIQ
DWDQ
t
t
DRDQ
WCH
CYD
CYC
WCL
T
T
High level
Low level
BOP
TR
When DPLL is
not used
When DPLL is
not used
ECHO BACK mode
Without SDLC Loop delay
T
T
R
R
1 mode, COP,
16, 32, 64 mode
A
A
X
X
X
X
= –10 to +70 C
= –40 to +85 C
X
INT mode
DMA mode
INT mode
DMA mode
C is output
Condition
T
T
T
T
T
T
T
T
T
T
T
T
A
A
A
A
A
A
A
A
A
A
A
A
= –10 to +70 C
= –40 to +85 C
= –10 to +70 C
= –40 to +85 C
= –10 to +70 C
= –40 to +85 C
= –10 to +70 C
= –40 to +85 C
= –10 to +70 C
= –40 to +85 C
= –10 to +70 C
= –40 to +85 C
PD72001-11, 72001-A8
MIN.
125
140
140
145
50
55
60
65
Rated Value
5
0
0
5
4
4
7
7
MAX.
140
145
300
305
100
100
100
140
140
DC
DC
DC
DC
DC
DC
11
11
6
6
Unit
t
t
t
t
t
CYK
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CYK
CYK
CYK
CYK
ns
ns