cop888fh National Semiconductor Corporation, cop888fh Datasheet - Page 7

• Manufacturer Part Number: cop888fh
• Description: 8-bit Cmos Rom Based Microcontrollers With 12k Memory, Comparators, Usart And Hardware Multiply/divide
• Manufacturer: National Semiconductor Corporation

MICROWIRE
MICROWIRE Hold Time (t
MICROWIRE Output Propagation Delay (t
Input Pulse Width
Reset Pulse Width
AC Electrical Characteristics COP98xFH:
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
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
have sink current to V
tance to V
Note 6: The output propagation delay is referenced to the end of the instruction cycle where the output change occurs.
0˚C
Interrupt Input High Time
Interrupt Input Low Time
Timer Input High Time
Timer Input Low Time
T
A
CC
is 750
+70˚C unless otherwise specified
™
Setup Time (t
CC
(typical). These two pins will not latch up. The voltage at the pins must be limited to less than 14V.
Parameter
when biased at voltages greater than V
UWH
UWS
)
)
UPD
FIGURE 3. MICROWIRE/PLUS Timing
)
CC
(the pins do not have source current when biased at a voltage below V
Conditions
7
(Continued)
DS012602-5
Min
20
56
1
1
1
1
1
Typ
CC
, L and G ports in the TRI-STATE
Max
CC
220
). The effective resis-
CC
and the pins will
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Units
ns
ns
ns
µs
t
t
t
t
c
c
c
c