UPI-452 Datasheet, PDF (52/53 Pages) Intel Corporation – CHMOS PROGRAMMABLE I/O PROCESSOR

UPI-452
HOST PORT WAVEFORMS
231428 – 27
HOST PORT TIMINGS
Test Conditions T_A ^e 0 C to 70 C V_CC ^e 5V g10% V_SS ^e 0V Load Capacitance ^e 80 pF
Symbol
Parameter
14 MHz Osc
Min
Max
Variable Oscillator
Min
Max
TCC
Cycle Time
429
6TCLCL
TPW
Command Pulse Width
100
100
TRV
Recovery Time
60
60
TAS
Address Setup Time
5
5
TAH
Address Hold Time
30
30
TDS
WRITE Data Setup Time
30
30
TDHW
WRITE Data Hold Time
5
5
TDHR
READ Data Hold Time
7
40
7
40
TDV
READ Active to Read
92
92
Data Valid Delay
TDR
WRITE Inactive to Read
343
Data Valid Delay
(Applies only to Host
Control SFR)
4 8TCLCL
TRQ
READ or WRITE Active
150
150
to DRQIN or DRQOUT
Inactive Delay
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
52