UPSD3212C Datasheet, PDF(145/152 Page) STMicroelectronics – Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM

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UPSD3212C Datasheet, PDF (145/152 Pages) STMicroelectronics – Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM

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Figure 79. External Clock Cycle

UPSD3212C, UPSD3212CV

Figure 80. Recommended Oscillator Circuits

Note: C1, C2 = 30pF Â± 10pF for crystals

For ceramic resonators, contact resonator manufacturer

Oscillation circuit is designed to be used either with a ceramic resonator or crystal oscillator. Since each crystal and ceramic resonator

have their own characteristics, the user should consult the crystal manufacturer for appropriate values of external components.

Figure 81. PSD MODULE AC Measurement I/O

Waveform

Figure 82. PSD MODULEAC Measurement

Load Circuit

3.0V

0V

Test Point

1.5V

AI03103b

Device

Under Test

2.01 V

195 â¦

CL = 30 pF

(Including Scope and

Jig Capacitance)

AI03104b

Table 118. Capacitance

Symbol

Parameter

Test Condition

CIN

COUT

Input Capacitance (for input pins)

Output Capacitance (for input/

output pins)

VIN = 0V

VOUT = 0V

Note: Sampled only, not 100% tested.

1. Typical values are for TA = 25Â°C and nominal supply voltages.

Typ.(1)

4

8

Max.

6

12

Unit

pF

pF

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