CXP5086 Ver la hoja de datos (PDF) - Sony Semiconductor

Número de pieza

componentes Descripción

Fabricante

CXP5086

CMOS 4-bit Single Chip Microcomputer

Sony Semiconductor 

CXP5084/5086

AC characteristics

(1) Clock timing

(Ta = –20 to +75°C, VDD = 4.5 to 5.5V, VSS = 0V reference)

Item

Symbol Pin

Condition

Min. Max. Unit

System clock frequency

fc

System clock input pulse width

tXL

tXH

System clock input rising and falling tCR

times

tCF

Event count clock input pulse width

tEL

tEH

Event count clock input rising and tER

falling times

tEF

XTAL

EXTAL

EXTAL

EXTAL

EC

Fig. 1., Fig. 2.

Fig. 1., Fig. 2.∗1

External clock drive

Fig. 1., Fig. 2.∗1

External clock drive

Fig. 3.

EC

Fig. 3.

1

5 MHz

90

ns

200 ns

tsys∗2 + 0.05

µs

20 ms

∗1 The external clock in Fig. 2. is specified only when the option is selected for crystal or ceramic oscillation.

∗2 In the standard version, tsys = 16/fc

In the high speed version, tsys = 8/fc

Note) When adjusting the frequency accurately, there may be cases in which they differ from Fig. 2.

1/fc

EXTAL

tXH

tCF

tXL

Fig. 1. Clock timing

VDD – 0.4V

0.4V

tCR

Crystal oscillation

Ceramic oscillation

CR oscillation

External clock∗1

EXTAL XTAL

C1

C2

EXTAL XTAL

R

C

EXTAL XTAL

OPEN

Fig. 2. Clock applying condition

0.8VDD

EC

0.2V

tEH

tEF

tEL

tER

Fig. 3. Event count clock timing

–7–

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