HD404669 datasheet(78/142 Pages) HITACHI

Part #	HD404669

Description	Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit

Download	142 Pages

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Manufacturer	HITACHI [Hitachi Semiconductor]

Direct Link	http://www.renesas.com/eng

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78 / 142 page

HD404669 Series

78

÷2

÷8

÷32

÷128

I/O control

logic

Idle control

logic

Octal counter

(OC1)

Serial 1 interrupt

request flag (IFS1)

Clock

Serial data

register 1

(SR1L, SR1U)

Serial mode register

1A (SM1A)

Serial mode register

1B (SM1B)

SO1

SCK1

SI1

System

clock

ø PER

÷512

÷2048

1/2

Data bus

Clock line

Signal line

1/2

Figure 58 Block Diagram of Serial Interface

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Renesas Technology Corp	HD404669	680Kb / 146P	Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit Sept. 1999

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Renesas Technology Corp	HD404669	680Kb / 146P	Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit Sept. 1999
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HD404669 Datasheet(PDF) 78 Page - Hitachi Semiconductor

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