cop8tab5 National Semiconductor Corporation, cop8tab5 Datasheet - Page 10

• Manufacturer Part Number: cop8tab5
• Description: 8-bit Cmos Rom Microcontroller With 2k Or 4k Memory
• Manufacturer: National Semiconductor Corporation

www.national.com
8.0 Electrical Characteristics
AC Electrical Characteristics −40˚C ≤ T
specified.
Note 4: Supply and IDLE currents are measured with CKI driven with a square wave Oscillator, inputs connected to V
to a load.
Note 5: The HALT mode will stop CKI from oscillating in the R/C and the Crystal configurations. CKI is TRI-STATE. Measurement of I
neither sourcing nor sinking current; with L. F, C, J, G0 and G2–G5 programmed as low outputs and not driving a load; all outputs programmed low and not driving
a load; all inputs tied to V
Note 6: The ACCESS.Bus interface of the COP8TAB5/TAC5 device implements and meets the timings necessary for interface to the I
logic levels. The bus drivers are designed with open-drain outputs, as required for proper bidirectional operation. The device will not meet the AC timing and
current/voltage drive requirements of the full bus specifications.
(Continued)
CC
; WATCHDOG and clock monitor disabled. Parameter refers to HALT mode entered via setting bit 7 of the G Port data register.
FIGURE 2. ACB Start and Stop Condition Timing
FIGURE 1. MICROWIRE/PLUS Timing
(Continued)
10
A
≤ +85˚C unless otherwise
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CC
and outputs driven low but not connected
DD
2
C and SMBus protocols at
HALT is done with device
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