KF2 datasheet(6/29 Pages) ETC

6 / 29 page

©NEC Electronics Corporation 2004

78K0/KF2

ZUD-CC-04-0129-E

Data Published Oct 2004 N CP(K)

4. Memory space

78K0/KF2 have 64kB linear address area.

To access more than 64KB ROM area, 96KB and 128KB ROM products have BANK type ROM at

address of 8000H to C000H. All BANK ROM size is 16KB.

Clock

78K0/KF2 have 2 type internal Ring-OSC and 2 type external resonator oscillation circuit.

78K0/KF2 can be operated high-speed internal Ring-OSC only. Low-speed Ring-OSC can connect to

Watch dog timer and 8bit timer (TMH1) only for high secure.

Common ROM

Bank ROM

Products

ROM size

Address

Number of

Bank

µPD78F0547

128KB

0000H-7FFFH

(32KB)

8000H-BFFFH

(16KB)

µPD78F0546

96KB

0000H-7FFFH

(32KB)

8000H-BFFFH

(16KB)

µPD78F0545

60KB

0000H-EFFFH

(60KB)

µPD78F0544

48KB

0000H-BFFFH

(48KB)

Low-speed

Ring-OSC

(240kHz typ)

High-speed

Ring-OSC

(8MHz typ)

High-speed

system clock

oscillation circuit

(2-20MHz)

Watchdog timer

CPU

Peripheral

Subsystem clock

oscillation circuit

(32.768kHz)

MPX

Watch timer

PCL

8bit timer (TMH1)

External resonator

External clock

External resonator

External clock

Fig. Clock connecting block image

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