ST90135 datasheet(179/190 Pages) STMICROELECTRONICS

Part #	ST90135

Description	8/16-BIT MCU FAMILY WITH UP TO 64K ROM/OTP/EPROM AND UP TO 2K RAM

PDF	190 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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179 / 190 page

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ST90158 - ELECTRICAL CHARACTERISTICS

EXTERNAL INTERRUPT TIMING TABLE

(VDD =5V ± 10%, TA =-40°C +85°C, Cload = 50pF, INTCLK = 12MHz, Push-pull output configuration, un-

less otherwise specified)

Note: The value left hand two columns show the formula used to calculate the timing minimum or maximum from the oscillator clock period,

prescale value and number of wait cycles inserted.

The value right hand two columns show the timing minimum and maximum for an external clock at 24 MHz divided by 2, prescale value of

zero and zero wait status.

EXTERNAL INTERRUPT TIMING

° Symbol

Parameter

Value (Note)

Unit

OSCIN Divided

by2Min.

OSCIN Not Divided

by 2 Min.

Min.

Max.

1TwLR

Low Level Minimum Pulse Width in

Rising Edge Mode

2TpC+12

TpC+12

2TwHR

High Level Minimum Pulse Width in

Rising Edge Mode

2TpC+12

TpC+12

3TwHF

High Level Minimum Pulse Width in

Falling Edge Mode

2TpC+12

TpC+12

4TwLF

Low Level Minimum Pulse Width in

Falling Edge Mode

2TpC+12

TpC+12

ST90135 Datasheet(PDF) 179 Page - STMicroelectronics