p89c538nbbb NXP Semiconductors, p89c538nbbb Datasheet - Page 27

• Manufacturer Part Number: p89c538nbbb
• Description: Cmos Single-chip 8-bit Microcontrollers With Flash Program Memory
• Manufacturer: NXP Semiconductors

1. CE and OE must be fixed high during V
2.
Philips Semiconductors
AC CHARACTERISTICS
T
NOTES:
Timing Waveform
Automatic Programming
One byte of data is programmed. Verifying in fast algorithm and
additional programming by external control are not required because
these operations are executed automatically by an internal control
1997 Jun 05
amb
SYMBOL
VPS
OES
CWC
CEP
EPH1
CEPH2
AS
AH1
DS
DH
CESP
CES
CESC
VPH
DF
DPA
AETC
AVT
CMOS single-chip 8-bit microcontrollers
with FLASH program memory
DF
= 0 C to 70 C, V
is defined as the time at which the output achieves the open circuit condition and data is no longer driven.
PARAMETER
V
OE setup time
Command programming cycles
WE programming pulse width
WE programming pulse width High
WE programming pulse width High
Address setup time
Address hold time for DATA Polling
DATA setup time
DATA hold time
CE setup time before DATA polling/toggle bit
CE setup time
CE setup time before command write
V
Output disable time (Note 2)
DATA polling/toggle bit access time
Total erase time in auto chip erase
Total programming time in auto verify
CC
PP
PP
= 5V " 10%, V
setup time
hold time
PP
PP
= 12V " 5%
transition from 5V to 12V or from 12V to 5V.
27
circuit. Programming completion can be verified by DATA polling and
toggle bit checking after automatic verify starts. Device outputs
DATA during programming and DATA after programming on Q7. Q0
to Q5(Q6 is for toggle bit; see toggle bit, DATA polling, timing
waveform) are in high impedance.
CONDITION
89C535/89C536/89C538
MIN
100
100
150
100
100
100
100
60
20
50
10
15
0
0
0
5(TYP)
MAX
Preliminary specification
150
300
35
UNIT
ns
ns
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s