3342-5 Peregrine Semiconductor, 3342-5 Datasheet - Page 10

• Manufacturer Part Number: 3342-5
• Description: EVAL KIT FOR PE3342
• Manufacturer: Peregrine Semiconductor
• Series: -r

Specifications of 3342-5

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 3342-05; 3342-50

EEPROM Programming
Frequency control data that is present in the EE
Register can be written to the non-volatile
EEPROM. All 20 bits are written simultaneously
in a parallel operation. The EEPROM is
guaranteed for at least 100 erase/write cycles.
Erase Cycle
The EEPROM should be taken through an erase
cycle before writing data, since the write operation
performs a logical AND of the EEPROM’s current
contents with the data in the EE Register. Erasing
the EEPROM is accomplished by holding the
S_WR, EESel, and EELoad inputs HIGH, then
applying one ERASE programming voltage pulse
to the V
source for this operation must be capable of
supplying the EEPROM erase cycle current
(I
shown in Figure 5.
Table 13. EEPROM Programming
Figure 5. EEPROM Erase Timing Diagram
Figure 6. EEPROM Write Timing Diagram
©2005-8 Peregrine Semiconductor Corp. All rights reserved.
Page 10 of 17
S_WR
PP
V
_ERASE, Table 5). The timing diagram is
1
1
V
PP
PP
_ERASE
EELoad
_WRITE
EELoad
S_WR
EESel
PP
S_WR
EESel
EESel
input (see Table 13). The voltage
1
0
12.5V
8.5V
0V
0V
3V
0V
-
EELoad
1
1
t
EESU
t
EESU
25ms @ −8.5V
25ms @ +12.5V
t
VPP
t
VPP
V
PP
t
EEPW
t
Erase cycle
Write cycle
EEPW
Function
t
VPP
t
EESU
t
VPP
t
EESU
Write Cycle
Using the Serial Data Port, the EE Register is first
loaded with the desired data. The EEPROM is
then programmed with this data by taking the
S_WR input HIGH and EESel input LOW, then
applying one WRITE programming voltage pulse
to the V
operation must be capable of supplying the
EEPROM write cycle current (I
5). The timing diagram of this operation is shown
in Figure 6. Programming is completed by taking
the EELoad input LOW.
Note that it is possible to erroneously overwrite
the EE Register with the EEPROM contents
before the write cycle begins by unneeded
manipulation of the EELoad bit (see Table 10 ).
Document No. 70-0091-04 │ UltraCMOS™ RFIC Solutions
PP
input. The voltage source for this
PP
_WRITE, Table
Product Specification
PE3342