19
FN2967.4
October 2, 2015
82C37A
(63)TRHDI READ HIGH to DACK Inactive 12 - 12 - 12 - ns
(64)TAZRL ADR Float to READ
LOW -2.5 - -2.5 - -2.5 - ns
PERIPHERAL (SLAVE) MODE
(41)TAR ADR Valid or CS
LOW to READ LOW 10 - 10 - 0 - ns
(42)TAWL ADR Valid to WRITE
LOW Setup Time 0 - 0 - 0 - ns
(43)TCWL CS
LOW to WRITE LOW Setup Time0-0-0-ns
(44)TDW Data Valid to WRITE
HIGH Setup Time 150 - 100 - 60 - ns
(45)TRA ADR or CS
Hold from READ HIGH 0 - 0 - 0 - ns
(46)TRDE Data Access from READ
- 140 - 120 - 80 ns
(47)TRDF DB Float Delay from READ
HIGH 585585555ns
(48)TRSTD Power Supply HIGH to RESET LOW
Setup Time
500 - 500 - 500 - ns
(49)TRSTS RESET to First IOR
or IOW 2TCY - 2TCY - 2TCY - ns
(50)TRSTW RESET Pulse Width 300 - 300 - 300 - ns
(51)TRW READ
Pulse Width 200 - 155 - 85 - ns
(52)TWA ADR from WRITE
HIGH Hold Time 0 - 0 - 0 - ns
(53)TWC CS
HIGH from WRITE HIGH
Hold Time
0-0-0-ns
(54)TWD Data from WRITE
HIGH Hold Time 10 - 10 - 10 - ns
(55)TWWS WRITE
Pulse Width 150 - 100 - 45 - ns
Timing Waveforms
FIGURE 8. SLAVE MODE WRITE
NOTE: Successive WRITE accesses to the 82C37A must allow at least TCY as recovery time between accesses. A TCY recovery time must be
allowed before executing a WRITE access after a READ access.
AC Electrical Specifications V
CC
= +5.0V 10%, GND = 0V, T
A
= 0
o
C to +70
o
C (C82C37A),
T
A
= -40
o
C to +85
o
C (I82C37A),
T
A
= -55
o
C to +125
o
C (M82C37A) (Continued)
SYMBOL PARAMETER
82C37A-5 82C37A 82C37A-12
UNITSMIN MAX MIN MAX MIN MAX
CS
A0 - A3
IOW
DB0 - DB7
INPUT VALID
INPUT VALID
TWWS
(55)
TDW
(44)
TCWL
(43)
TAWL
(42)
TWC (53)
TWA (52)
TWD (54)
82C37A
