
DS5000(T)
15 of 19
AC CHARACTERISTICS (cont'd)
PARALLEL PROGRAM LOAD TIMING
(tA=0°C to 70°C; VCC=5V ± 5%)
#
PARAMETER
SYMBOL
MIN
MAX
UNITS
40 Oscillator Frequency
1/tCLK
1.0
12.0
MHz
41 Address Setup to PROG Low
tAVPRL
0
42 Address Hold after PROG High
tPRHAV
0
43 Data Setup to PROG Low
tDVPRL
0
44 Data Hold after PROG High
tPRHDV
0
45 P2.7, 2.6, 2.5 Setup to VPP
tP27HVP
0
46 VPP Setup to PROG Low
tVPHPRL
0
47 VPP Hold after PROG Low
tPRHVPL
0
48
PROG
Width Low
tPRW
2400
tCLK
49 Data Output from Address Valid
tAVDV
48
1800*
tCLK
50 Data Output from P2.7 Low
tDVP27L
48
1800*
tCLK
51 Data Float after P2.7 High
tP27HDZ
0
48
1800*
tCLK
52 Delay to Reset/ PSEN Active after Power On
tPORPV
21504
tCLK
53 Reset/ PSEN Active (or Verify Inactive) to
VPP High
tRAVPH
1200
tCLK
54 VPP Inactive (Between Program Cycles)
tVPPPC
1200
tCLK
55 Verify Active Time
tVFT
48
2400*
tCLK
* Second set of numbers refers to expanded memory programming up to 32k bytes.