87LPC769 datasheet(57/61 Pages) PHILIPS

57 / 61 page

Philips Semiconductors

Preliminary specification

87LPC769

Low power, low price, low pin count (20 pin)

microcontroller with 4 kB OTP 8-bit A/D, and DAC

2001 Jan 11

AC ELECTRICAL CHARACTERISTICS

Tamb = –40 °C to +125 °C, VDD = 2.7 V to 6.0 V unless otherwise specified, VSS = 0 V1, 2, 3

SYMBOL

FIGURE

PARAMETER

LIMITS

UNIT

SYMBOL

FIGURE

PARAMETER

MIN

MAX

UNIT

External Clock

Oscillator frequency (VDD = 4.0 V to 6.0 V)

MHz

Oscillator frequency (VDD = 2.7 V to 6.0 V)

MHz

Clock period and CPU timing cycle

1/fC

tCHCX

Clock high-time4

fOSC = 20 MHz

fOSC = 10 MHz

tCLCX

Clock low-time4

fOSC = 20 MHz

fOSC = 10 MHz

Shift Register

tXLXL

Serial port clock cycle time

6tC

tQVXH

Output data setup to clock rising edge

5tC – 133

tXHQX

Output data hold after clock rising edge

1tC – 80

tXHDV

Input data setup to clock rising edge

5tC – 133

tXHDX

Input data hold after clock rising edge

NOTES:

1. Parameters are valid over operating temperature range unless otherwise specified.

2. Load capacitance for all outputs = 80 pF.

3. Parts are guaranteed to operate down to 0 Hz.

4. Applies only to an external clock source, not when a crystal is connected to the X1 and X2 pins.

87LPC769 Datasheet(PDF) 57 Page - NXP Semiconductors

87LPC769 Datasheet(HTML) 57 Page - NXP Semiconductors

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