3822 datasheet(65/328 Pages) RENESAS

65 / 328 page

1-50

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

3822 Group

Measurement output pin

100 pF

CMOS output

Note : When bit 4 of the UART

control register (address 001B 16) is “1”.

(N-channel open-drain output mode)

N-channel open-drain output (Note)

1 k

Ω

100 pF

Measurement output pin

SWITCHING CHARACTERISTICS 1(VCC = 4.0 to 5.5 V, VSS = 0 V, Ta = –20 to 85

°C, unless otherwise noted.

Notes 1 : When the P45/TXD P-channel output disable bit of the UART control register (bit 4 of address 001B16) is “0”.

2 : XOUT and XCOUT pins are excluded.

Serial I/O clock output “H” pulse width

Serial I/O clock output “L” pulse width

Serial I/O output delay time (Note 1)

Serial I/O output valid time (Note 1)

Serial I/O clock output rising time

Serial I/O clock output falling time

CMOS output rising time (Note 2)

CMOS output falling time (Note 2)

140

Symbol

Parameter

Limits

Min.

Unit

tc(SCLK)/2–30

–30

Typ.

Max.

twH(SCLK)

twL(SCLK)

td(SCLK–TXD)

tv(SCLK–TXD)

tr(SCLK)

tf(SCLK)

tr(CMOS)

tf(CMOS)

Extended operating temperature version : VCC = 3.0 to 5.5 V, Ta = –40 to –20

°C and VCC = 2.5 to 5.5 V, Ta = –20 to 85°C)

Fig. 43 Circuit for measuring output switching characteristics (1)

SWITCHING CHARACTERISTICS 2 (VCC = 2.5 to 4.0 V, VSS = 0 V, Ta = –20 to 85