MS82C55A_06 Datasheet, PDF (22/26 Pages) Intersil Corporation – CMOS Programmable Peripheral Interface

MS82C55A, MQ82C55A, MP82C55A
Timing Waveforms (Continued)
A0-A1,
CS
DATA
BUS
WR
tAW (7)
tWA (8)
tDW (10) tWD (11)
tWW (9)
FIGURE 30. WRITE TIMING
A0-A1,
CS
RD
DATA
BUS
tAR (1)
tRR (3)
(4) tRD
VALID
HIGH IMPEDANCE
FIGURE 31. READ TIMING
tRA (2)
tDF (5)
AC Test Circuit
OUTPUT FROM
DEVICE UNDER
TEST
V1
R1
R2
TEST
POINT
C1
(SEE NOTE)
NOTE: Includes STRAY and JIG Capacitance
AC Testing Input, Output Waveforms
INPUT
VIH + 0.4V
OUTPUT
VOH
1.5V
1.5V
VIL - 0.4V
VOL
AC Testing: All AC Parameters tested as per test circuits. Input RISE
and FALL times are driven at 1ns/V.
TEST CONDITION DEFINITION TABLE
TEST CONDITION
V1
R1
R2
1
1.7V
523Ω Open
2
V_CC
2kΩ
1.7kΩ
3
1.5V
750Ω Open
C1
150pF
50pF
50pF
22
FN6140.2
June 15, 2006