80C154 TEMIC Semiconductors, 80C154 Datasheet - Page 22

• Manufacturer Part Number: 80C154
• Description: CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
• Manufacturer: TEMIC Semiconductors

80C154/83C154
AC inputs during testing are driven at Vcc – 0.5 for a logic “1” and 0.45 V for a logic “0”. Timing measurements are
made at VIH min for a logic “1” and VIL max for a logic “0”.
For timing purposes as port pin is no longer floating when a 100 mV change from load voltage occurs and begins to
float when a 100 mV change from the loaded VOH/VOL level occurs. Iol/IoH
22
External Clock Drive Characteristics (XTAL1)
External Clock Drive Waveforms
AC Testing Input/Output Waveforms
Float Waveforms
SYMBOL
TCHCX
TCLCX
TCLCH
TCHCL
FCLCL
TCLCL
Oscillator Frequency
Oscillator period
High Time
Low Time
Rise Time
Fall Time
PARAMETER
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MIN
27.8
5
5
MAX
36
5
5
20 mA.
Rev.F (14 Jan. 97)
UNIT
MATRA MHS
MHz
ns
ns
ns
ns
ns