COP888FH Datasheet, PDF (7/49 Pages) National Semiconductor (TI) – 8-Bit CMOS ROM Based Microcontrollers with 12k Memory, Comparators, USART and Hardware Multiply/Divide

AC Electrical Characteristics COP98xFH: (Continued)
0˚C ≤ T_A ≤ +70˚C unless otherwise specified
Parameter
MICROWIRE™Setup Time (t_UWS)
MICROWIRE Hold Time (t_UWH)
MICROWIRE Output Propagation Delay (t_UPD)
Input Pulse Width
Interrupt Input High Time
Interrupt Input Low Time
Timer Input High Time
Timer Input Low Time
Reset Pulse Width
Conditions
Min
Typ
20
56
1
1
1
1
1
Max
220
Units
ns
ns
ns
t_c
t_c
t_c
t_c
µs
Note 2: Rate of voltage change must be less than 0.5V/ms.
Note 3: Supply current is measured after running 2000 cycles with a square wave CKI input, CKO open, inputs at rails and outputs open.
Note 4: The HALT mode will stop CKI from oscillating in the RC and the Crystal configurations. Test conditions: All inputs tied to V_CC, L and G ports in the TRI-STATE
mode and tied to ground, all outputs low and tied to ground. The clock monitor and the comparator are disabled.
Note 5: Pins G6 and RESET are designed with a high voltage input network for factory testing. These pins allow input voltages greater than V_CC and the pins will
have sink current to V_CC when biased at voltages greater than V_CC (the pins do not have source current when biased at a voltage below V_CC). The effective resis-
tance to V_CC is 750Ω (typical). These two pins will not latch up. The voltage at the pins must be limited to less than 14V.
Note 6: The output propagation delay is referenced to the end of the instruction cycle where the output change occurs.
DS012602-5
FIGURE 3. MICROWIRE/PLUS Timing
7
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