Renesas PCA4738S-42A Especificações descarregar pdf (Página 48)

3851 Group

(Built-in 16 KB ROM)

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

TIMING REQUIREMENTS

Table 17 Timing requirements (1)

(VCC = 4.0 to 5.5 V, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)

Reset input “L” pulse width

External clock input cycle time

External clock input “H” pulse width

External clock input “L” pulse width

CNTR0, CNTR1 input cycle time

CNTR0, CNTR1, INT0–INT3 input “H” pulse width

CNTR0, CNTR1, INT0–INT3 input “L” pulse width

Serial I/O clock input cycle time (Note)

Serial I/O clock input “H” pulse width (Note)

Serial I/O clock input “L” pulse width (Note)

tW(RESET)

tC(XIN)

tWH(XIN)

tWL(XIN)

tC(CNTR)

tWH(CNTR)

tWL(CNTR)

tC(SCLK)

tWH(SCLK)

tWL(SCLK)

tsu(RxD-SCLK)

th(SCLK-RxD)

Limits

XIN cycle

Parameter

Min.

125

200

800

370

220

100

Typ. Max.

Symbol Unit

Note : When f(XIN) = 8 MHz and bit 6 of address 001A16 is “1” (clock synchronous).

Divide this value by four when f(X

IN) = 8 MHz and bit 6 of address 001A16 is “0” (UART).

Serial I/O input setup time

Serial I/O input hold time

Table 18 Timing requirements (2)

(VCC = 2.7 to 4.0 V, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)