UPD72001-A8 NEC [NEC], UPD72001-A8 Datasheet - Page 24

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

Communication control:
Crystal oscillation and reset:
24
Transmit enable command (WR ,
CTS )
Receive enable command (DCD )
setup time (vs. start bit, STR
TR
Receive enable command (DCD )
hold time (vs. STR
Receive clock (STR
hold time (vs. start bit, MSB of CRC,
MSB of end flag)
Receive clock (STR
setup time (vs. start bit, sync character)
XI1 input cycle time
RESET pulse width
Note Of STR
Caution The system clock cycle in all modes must be five times that of the data rate.
X
C
of sync character)
T
X
Parameter
D delay time
Parameter
X
X
C and TR
C , TR
X
X
C, TR
C, TR
Note
X
X
X
C)
C)
C )
X
X
C ,
Note
Note
C, the one used as the receive clock.
Note
Symbol
Symbol
t
t
t
t
t
t
t
t
t
t
t
HRCRE1
HRCRE2
HRCRE3
HRDRC1
HRDRC2
HRDRC3
SRCRD1
SRCRD2
DTETD1
DTETD2
t
SRERC
t
WRSL
CYX
ASYNC, COP
BOP
ASYNC
COP
BOP
ASYNC
COP
BOP
ASYNC
COP, BOP
T
T
A
A
= –10 to +70 C
= –40 to +85 C
Condition
Condition
PD72001-11, 72001-A8
20 t
+ 8t
+ 8t
MIN.
3t
MIN.
125
140
22
Rated Value
Rated Value
4
1
7
1
5
1
1
2
CYC
CYC
CYK
CYK
MAX.
MAX.
1000
1000
3
7
Unit
Unit
t
t
t
t
t
t
t
t
Bit
CYC
CYC
CYC
CYK
CYC
CYC
CYC
ns
CYK
Bit