PCA2002U/10AB/1,00 NXP Semiconductors, PCA2002U/10AB/1,00 Datasheet - Page 8

• Manufacturer Part Number: PCA2002U/10AB/1,00
• Manufacturer: NXP Semiconductors

Specifications of PCA2002U/10AB/1,00

• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
PCA2002_6
Product data sheet
Fig 5.
V
The example shows the programming of B = 110101 (the sequence is MSB first and LSB last).
V
Supply voltage modulation for programming
P(prog)(start)
DD(nom)
V
V
DD(nom)
P(mod)
V
V
DD
SS
: nominal supply voltage.
7.7 Programming the memory cells
After the V
is cleared.
The instruction state ends with a second pulse to V
In any case, the instruction states are terminated automatically 2 seconds after the last
supply modulation pulse.
Applying the two-stage programming pulse (see
shift register to the OTP cells.
Perform the following to program a memory word:
The example shown in
1. Starting with a V
2. Enter the data to be stored into the shift register (t
3. Applying the two-stage programming pulse V
•
•
•
•
counter to the word to be written (t
MSB last (bit 1).
The delay between the last data bit and the pre-store pulse V
word by raising the supply voltage to V
store pulse is t
Start
Setting the instruction counter to state 4 (word B)
Entering data word 110101 into the shift register (sequence: LSB first and MSB last)
Writing the OTP cells for word B
t
p(start)
t
0
P(prog)(start)
32 kHz watch circuit with programmable output period and pulse width
t
1
All information provided in this document is subject to legal disclaimers.
t
1
d
t
1
.
P(prog)(start)
pulse, the instruction counter is in state 1 and the data shift register
Figure 5
t
3
Rev. 06 — 6 May 2010
t
2
pulse, wait for the time period t
performs the following functions:
t
3
d
= t
t
2
store
1
).
; the delay between the last data bit and the
t
3
V
Figure
prestore
prestore
V
P(prog)(stop)
store
t
d
3
= t
followed by V
5) transfers the stored data in the
2
t
4
or t
or with the pulse to V
0
3
then set the instruction
), LSB first (bit 8) and
prestore
t
w(prestore)
t
w(store)
store
PCA2002
is t
© NXP B.V. 2010. All rights reserved.
stores the word.
d
mgw356
= t
4
. Store the
store
8 of 26
.