cop87l88rb National Semiconductor Corporation, cop87l88rb Datasheet - Page 6

• Manufacturer Part Number: cop87l88rb
• Description: 8-bit Cmos Otp Microcontrollers With 16k Or 32k Memory, Can Interface, 8-bit A/d, And Usart
• Manufacturer: National Semiconductor Corporation

www.national.com
Instruction Cycle Time (t
Inputs
Output Propagation Delay (t
MICROWIRE
Input Pulse Width
Reset Pulse Width (Note 10)
Reference Voltage
V
Reference Supply
Current, I
DC Electrical Characteristics
Note 3: Supply current is measured after running 2000 cycles with a square wave CKI input, CKO open, inputs at V
Note 4: The HALT mode will stop CKI from oscillating in the Crystal configurations. Halt test conditions: All inputs tied to V
figured as outputs and programmed low; D outputs programmed high. Parameter refers to HALT mode entered via setting bit 7 of the Port G data register. Part will
pull up CKI during HALT in crystal clock mode. Both CAN main comparator and the CAN Wakeup comparator need to be disabled.
Note 5: . HALT and IDLE current specifications assume CAN block comparators are disabled.
Note 6: Pins G6 and RESET are designed with a high voltage input network. These pins allow input voltages greater than V
to V
(typical). These two pins will not latch up. The voltage at the pins must be limited to less than 14V.
Note 7: Condition and parameter valid only for part in HALT mode.
Note 8: Parameter characterized but not tested.
AC Electrical Characteristics
t
The maximum bus speed achievable with the CAN interface is a function of crystal frequency, message length and software overhead. The device can support a bus
speed of up to 1 Mbit/S with a 10 MHz oscillator and 2 byte messages. The 1M bus speed refers to the rate at which protocol and data bits are transferred on the
bus. Longer messages require slower bus speeds due to the time required for software intervention between data bytes. The device will support a maximum of 125k
bits/s with eight byte messages and a 10 MHz oscillator.
For device testing purpose of all AC parameters, V
Note 9: The output propagation delay is referenced to the end of the instruction cycle where the output change occurs.
Note 10: Parameter not tested.
On-Chip Voltage Reference
Note 11: Reference supply I
−40˚C
−40˚C
c
REF
Crystal/Resonator
t
t
SK, SO
All others
Setup Time (tUWS) (Note 10)
Hold Time (tUWH) (Note 10)
Output Pop Delay (tUPD)
Interrupt High Time
Interrupt Low Time
Timer 1, 2 High Time
Timer 1, 2 Low Time
SETUP
HOLD
= Instruction Cycle Time
CC
when biased at voltages greater than V
Parameter
DD
T
T
A
A
+85˚C
+85˚C
Parameter
DD
c
)
is supplied for information purposes only, it is not tested.
PD1
I
V
I
V
, t
OUT
OUT
CC
CC
PD0
= 5V
= 5V (Note 11)
<
= 0A, (No Load)
) (Note 9)
CC
80 µA,
(the pins do not have source current when biased at a voltage below V
Conditions
OH
will be tested at 0.5*V
(Continued)
V
V
V
C
V
V
CC
CC
CC
CC
CC
L
= 100 pF, R
CC
.
4.5V
4.5V
4.5V
4.5V
4.5V
6
Conditions
0.5V
L
CC
Min
= 2.2 k
−0.12
Min
200
1.0
1.0
60
20
56
CC
1
1
1
1
CC
0.5V
or GND, and outputs open.
). The effective resistance to V
CC
; Port C, G, E, F, L, M and N I/Os con-
CC
Max
CC
120
and the pins will have sink current
Typ
+0.12
Max
220
DC
0.7
1
CC
Units
µA
V
is 750
Units
µs
ns
ns
µs
µs
ns
ns
ns
µs
t
t
t
t
c
c
c
c