Z80185 查看數據表（PDF） - Zilog

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产品描述 (功能)

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Z80185

SMART PERIPHERAL CONTROLLERS

Zilog 

Zilog

PRELIMINARY

Z80185/Z80195

SMART PERIPHERAL CONTROLLES

ELECTRICAL CHARACTERISTICS (Continued)

The following table shows the characteristics of each pin

in terms of the above classifications. A dash "–" in the input

or output column indicates the pin does not have that

function.

Pin

/BUSREQ

/CTS

/CTS0/RxS

/DCD

/DCD0/CKA1

/DTR

/HALT

/INT0

/INT1

/INT2

/IOCS

/IORQ

/M1

/MREQ

/NMI

/RAMCS

/RD

/RESET

/RFSH

/ROMCS

/RTS

/RTS0/TxS

/RTXC

/TRXC

/WAIT

/WR

A0-A19

Table 9. Pin Classification Characteristics

Input Class

Output Class

Pin

Input Class

I

–

Busy

S

I

–

CKA0/CKS

I

I

–

D0-D7

I

I

–

EXTAL

R

I

3

IEI

I

IEO

–

–

O

–

O

nAck

S

I

D

nAutoFd

S

I

–

nFault

S

I

–

nInit

S

–

O

nSelectIn

S

nStrobe

S

I

3

I

3

PError

S

I

3

PHI

–

R

–

PIA13-10/CLKTRG3-0 I

–

O

PIA15-13/ZCTO2-0

I

I

3

PIA27-20

S

RXA0

I

R

D

–

O

RXA1

I

–

O

RXD

I

–

O

/ST

–

–

O

Select

S

TOUT//DREQ

I

I

3

I

3

TXA0

–

I

D

TXA1

–

I

3

TXD

–

I

3

XTAL

–

Output Class

T

3

3

–

–

O

T

T

T

T

T

T

T

H

3

3

T

–

–

–

O

T

O

O

O

O

O

DS971850301

93

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