3825 datasheet(59/71 Pages) RENESAS

59 / 71 page

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

3825 Group

Table 30. Timing reguirements 1 (Extended operating temperature version)

(VCC = 4.0 to 5.5 V, VSS = 0 V, Ta = –40 to 85°C, unless otherwise noted.)

125

250

105

800

370

220

100

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

Divide this value by four when f(XIN) = 8 MHz and bit 6 of address 001A16 is “0” (UART).

Reset input “L” pulse width

Main clock input cycle time (XIN input)

Main clock input “H” pulse width

Main clock input “L” pulse width

CNTR0, CNTR1 input cycle time

CNTR0, CNTR1 input “H” pulse width

CNTR0, CNTR1 input “L” pulse width

INT0 to INT3 input “H” pulse width

INT0 to 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)

Serial I/O input set up time

Serial I/O input hold time

tw(RESET)

tc(XIN)

twH(XIN)

twL(XIN)

tc(CNTR)

twH(CNTR)

twL(CNTR)

twH(INT)

twL(INT)

tc(SCLK)

twH(SCLK)

twL(SCLK)

tsu(RXD–SCLK)

th(SCLK–RXD)

Symbol

Parameter

Limits

Min.

µs

Unit

Typ.

Max.

Table 31. Timing reguirements 2 (Extended operating temperature version)

(VCC = 2.5 to 4.0 V, VSS = 0 V, Ta = –20 to 85°C, and VCC = 3.0 to 4.0 V, VSS = 0 V, Ta = –40 to –20°C, unless otherwise noted.)

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