UPD72001C-11 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD72001C-11

MULTI-PROTOCOL SERIAL CONTROLLERS

NEC => Renesas Technology 

µPD72001-11, 72001-A8

Modem control:

Parameter

Symbol

Condition

CTS, DCD, SYNC pulse

width

High

Low

CTS, DCD, SYNC → INT delay time

STRXC, TRXC ↑ → SYNC setup time

tWMH

tWML

tDMIQ

TSSYRC

COP external synchronization

Rated Value

MIN. MAX.

2

2

2

0

2

Unit

tCYK

tCYK

tCYK

tCYK

Communication control:

Parameter

Symbol

Condition

Transmit enable command

(WR ↑, CTS ↓) → TXD delay time

Receive enable command (DCD ↓)

setup time (vs. start bit, STRXC ↑,

TRXC ↑ of sync character)Note

Receive enable command (DCD ↓)

hold time (vs. STRXC ↑, TRXC ↑)Note

tDTETD1

tDTETD2

tSRERC

tHRCRE1

tHRCRE2

ASYNC, COP

BOP

ASYNC

COP

tHRCRE3

BOP

Receive clock (STRXC, TRXC)Note

hold time (vs. stop bit, MSB of CRC,

MSB of end flag)

Receive clock (STRXC, TRXC)Note

setup time (vs. start bit, sync character)

tHRDRC1

tHRDRC2

tHRDRC3

tSRCRD1

tSRCRD2

ASYNC

COP

BOP

ASYNC

COP, BOP

Rated Value

MIN. MAX.

3

4

7

1

Unit

tCYC

tCYC

tCYC

7

tCYK

20tCYC

+ 8tCYK

3tCYC

+ 8tCYK

1

Bit

22

tCYC

5

tCYC

1

Bit

1

tCYC

Note Of STRXC and TRXC, the one used as the receive clock.

Crystal oscillation and reset

Parameter

XI1 input cycle time

RESET pulse width

Symbol

tCYX

tWRSL

Condition

Rated Value

Unit

MIN. MAX.

90

2000

ns

2

tCYK

Caution The system clock cycle in all modes must be five times that of the data rate.

18

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