UPD78CP18 datasheet(21/50 Pages) NEC

Nome de Peças	UPD78CP18

Descrição Electrónicos	8-BIT SINGLE-CHIP MICROCOMPUTER

PDF	50 Pages

Scroll/Zoom	100%

Fabricante Electrônico	NEC [NEC]

Página de início	http://www.nec.com/

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21 / 50 page

µPD78CP18(A)

Caution When +12.5 V is applied to VPP and +6 V is applied to VDD, setting both CE and OE to “L” is prohibited.

Table 4-3. Recommended Connection of Unused Pins (in PROM Programming Mode)

Operating Mode

CENote OENote

VPPNote

VDDNote

RESET

MODE0

MODE1

Program

+12.5 V

+6 V

Program verify

Program inhibit

Read

+5 V

Output disable

Standby

L/H

Note

These pins correspond to the

µPD27C256A.

4.1

PROM PROGRAMMING OPERATING MODES

The PROM programming operating mode is set as shown in Table 4-2. Pins not used for programming should

be handled as shown in Table 4-3.

Table 4-2. PROM Programming Modes

Recommended Connection

INT1

Connect to VSS.

AN0 to AN7

VAREF

AVDD

AVSS

Pins other than the

Connect to VSS via individual resistor.

above

Leave open.

UPD78CP18 Folha de dados(PDF) 21 Page - NEC