AN87C196CA18 データシートの表示（PDF） - Intel

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AN87C196CA18

Advanced 16-Bit CHMOS Microcontroller

Intel 

87C196CA 18 MHz Microcontroller — Automotive

Table 6.

AC Characteristics (Sheet 2 of 2)

(over specified operating conditions); Test conditions: capacitance load on all pins = 100 pF, Rise

and fall times = 10 ns, FOSC = 18 MHz

Symbol

Parameter

Min

Max

Units

TRHLH

TRLAZ

RD# Rising Edge to ALE/ADV# Rising Edge

RD# Low to Address Float

TOSC

TOSC + 25

5

ns(4)

ns(6)

TLLWL ALE/ADV# Falling Edge to WR# Falling Edge

TOSC – 10

ns

TCLWL CLKOUT Low to WR# Falling Edge

–5

25

ns

TQVWH Data Stable to WR# Rising Edge

TOSC – 23

ns

TCHWH CLKOUT High to WR# Rising Edge

–10

15

ns

TWLWH WR# Low Period

TOSC – 20

ns

TWHQX

TWHLH

Data Hold after WR# Rising Edge

WR# Rising Edge to ALE/ADV# Rising Edge

TOSC – 25

TOSC – 10

TOSC + 15

ns

ns(4)

TWHBX

TWHAX

BHE# Hold after WR# Rising Edge

AD[15:8] Hold after WR# Rising Edge

TOSC – 10

TOSC – 30

ns

ns(5)

TRHBX

TRHAX

BHE# Hold after RD# Rising Edge

AD[15:8] Hold after RD# Rising Edge

TOSC – 10

TOSC – 30

ns

ns(5)

NOTES:

1. If max is exceeded, additional wait states will occur.

2. Testing performed at 4 MHz; however, the device is static by design and will typically operate below 1 Hz.

3. Typical specifications, not guaranteed.

4. Assuming back-to-back bus cycles.

5. 8-bit bus only.

6. TRLAZ (max) = 5 ns by design.

7. TOFD is the time for the oscillator fail detect circuit (OFD) to react to a clock failure.

12

Datasheet

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