COP8TAB5 datasheet(10/54 Pages) NSC

10 / 54 page

8.0 Electrical Characteristics (Continued)

AC Electrical Characteristics −40˚C

≤ T

A ≤ +85˚C unless otherwise

specified. (Continued)

Note 4: Supply and IDLE currents are measured with CKI driven with a square wave Oscillator, inputs connected to VCC and outputs driven low but not connected

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 IDD HALT is done with device

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 VCC; WATCHDOG and clock monitor disabled. Parameter refers to HALT mode entered via setting bit 7 of the G Port data register.

Note 6: The ACCESS.Bus interface of the COP8TAB5/TAC5 device implements and meets the timings necessary for interface to the I2C and SMBus protocols at

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.

20091782

FIGURE 1. MICROWIRE/PLUS Timing

20091783

FIGURE 2. ACB Start and Stop Condition Timing

COP8TAB5 Datasheet(PDF) 10 Page - National Semiconductor (TI)

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