UPD77019 datasheet(7/56 Pages) NEC

7 / 56 page

µPD77018A, 77019

BSTB:

Bus Strobe

CLKOUT:

Clock Output

D0-D15:

16 Bits Data Bus

DA0-DA13:

External Data Memory Address Bus

GND:

Ground

HA0,HA1:

Host Data Access

HCS:

Host Chip Select

HD0-HD7:

Host Data Bus

HOLDAK:

Hold Acknowledge

HOLDRQ:

Hold Request

HRD:

Host Read

HRE:

Host Read Enable

HWE:

Host Write Enable

HWR:

Host Write

I.C.:

Internally connection

INT1-INT4:

Interrupt

MRD:

Memory Read Output

MWR:

Memory Write Output

P0-P3:

Port

RESET:

Reset

SCK1,SCK2:

Serial Clock Input

SI1,SI2:

Serial Data Input

SIAK1:

Serial Input Acknowledge

SIEN1,SIEN2:

Serial Input Enable

SO1,SO2:

Serial Data Output

SOEN1,SOEN2: Serial Output Enable

SORQ1:

Serial Output Request

TCK:

Test Clock Input

TDI:

Test Data Input

TDO:

Test Data Output

TICE:

Test In-Circuit Emulator

TMS:

Test Mode Select

VDD:

Power Supply

WAIT:

Wait Input

X1:

Clock input/crystal connection

X2:

Crystal connection

X/Y:

X/Y Memory Select

PIN IDENTIFICATION

UPD77019 Datasheet(PDF) 7 Page - NEC

UPD77019 Datasheet(HTML) 7 Page - NEC

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