Microchip 34AA02 Manual de Usario

Microchip No categorizado 34AA02

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2007-2022
Microchip Technology Inc. and its subsidiaries
DS20002029G-page 1
34AA02/34LC02
Features
• Permanent and Resettable Software Write-Protect
for Lower Half of the Array (00h-7Fh)
• Single Supply with Operation Down to 1.7V
• Low-Power CMOS Technology:
- Read current: 1 mA, typical
- Standby current: 100 nA, typical
• Two-Wire Serial Interface Bus, I2C Compatible
• Cascadable Up to Eight Devices
• Schmitt Trigger Inputs for Noise Suppression
• Output Slope Control to Eliminate Ground Bounce
• 100 kHz and 400 kHz Compatibility
• 1 MHz Clock for LC Versions
• Page Write Time: 5 ms, Maximum
• Self-Timed Erase/Write Cycle
• 16-Byte Page Write Buffer
• ESD Protection > 4,000V
• Software Write Protection for Lower 128 Bytes
• Hardware Write Protection for Entire Array
• More than 1 Million Erase/Write Cycles
• Data Retention > 200 Years
• RoHS Compliant
• Available for Extended Temperature Ranges:
- Industrial (I): -40°C to +85°C
- Extended (E): -40°C to +125°C
• Automotive AEC-Q100 Qualified
Packages
• 8-Lead MSOP, 8-Lead PDIP, 8-Lead SOIC,
6-Lead SOT-23, 8-Lead TDFN and 8-Lead
TSSOP
Description
The Microchip Technology Inc. 34XX02( )1 is a 2-Kbit
Electrically Erasable PROM (EEPROM). This device
has two software write-protect features for the lower
half of the array, as well as an external pin that can be
used to write-protect the entire array. This allows the
system designer to protect none, half or all of the array,
depending on the application. The device is organized
as one block of 256 x 8-bit memory with a two-wire
serial interface. Its low-voltage design permits
operation down to 1.7V, with standby and active
currents of only 100 nA and 1 mA, respectively. The
34XX02 also has a page write capability for up to
16 bytes of data.
Package Types
Device Selection Table
Part Number VCC Range Max. Clock Frequency Temp. Ranges Packages
34AA02 1.7V-5.5V 400 kHz( )1I, E MS, P. SN, OT, MNY, ST
34LC02 2.2V-5.5V 1 MHz I, E MS, P. SN, OT, MNY, ST
Note 1: 100 kHz for VCC <1.8V.
Note 1: 34XX02 is used in this document as a
generic part number for the
34AA02/34LC02 devices.
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
MSOP/PDIP/SOIC/TSSOP
A0
A1
A2
V
SS
WP
SCL
SDA
V
CC
SOT-23
6
2
4 SDA
VCC
VSSA0
A1
5
3
1 SCL
TDFN
1
2
3
4
8
7
6
5
2-Kbit I2C Serial EEPROM Software Write-Protect
34AA02/34LC02
DS20002029G-page 2 2007-2022
Microchip Technology Inc. and its subsidiaries
Block Diagram
I/O
Control
Logic
Memory
Control
Logic XDEC
HV Generator
Standard
Array
Software write-
Write-Protect
Circuitry
YDEC
Vcc
Vss
Sense Amp.
R/W Control
SDA SCL
A0 A1 A2 WP
protected area
(00h-7Fh)
2007-2022
Microchip Technology Inc. and its subsidiaries
DS20002029G-page 3
34AA02/34LC02
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings(†)
VCC.............................................................................................................................................................................6.5V
All inputs and outputs w.r.t. VSS ..........................................................................................................-0.3V to VCC +1.0V
Storage temperature ...............................................................................................................................-65°C to +150°C
Ambient temperature with power applied................................................................................................-40°C to +125°C
ESD protection on all pins  4 kV
† NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. These are stress ratings only and functional operation of the device at these or any other conditions above
those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating
conditions for extended periods may affect device reliability.
TABLE 1-1: DC SPECIFICATIONS
DC CHARACTERISTICS
Electrical Characteristics:
Industrial (I): TA = -40°C to +85°C
Extended (E): TA = -40°C to +125°C
Param.
No. Symbol Characteristic Min. Typical Max. Units Conditions
D1 VIH High-Level Input Voltage 0.7 VCC — — V
D2 VIL Low-Level Input Voltage — — 0.3 VCC V 0.2 VCC for V < 2.5VCC
D3 VHYS Hysteresis of Schmitt
Trigger Inputs 0.05 Vcc — — V Note 1
D4 VOL Low-Level Output Voltage — — 0.40 V IOL = 3.0 mA, VCC = 2.5V
D5 VHV High-Voltage Detect
7 — 10 V A0 Pin only, VCC < 2.2V
VCC + 4.8 — 10 V A0 Pin only, VCC 2.2V
10 — VCC + 4.8 V A0 Pin only, VCC 5.2V
D6 ILI Input Leakage Current — — ±1 µA VIN = VSS or VCC
D7 ILO Output Leakage Current — — ±1 µA VOUT = VSS or VCC
D8 CIN,
COUT
Pin Capacitance
(all inputs/outputs) — — 10 pF VCC = 5.5V (Note 1)
TA = +25°C, FCLK = 1 MHz
D9 ICC Write Operating Current — 0.1 3 mA VCC = 5.5V, SCL = 1 MHz
D10 ICC Read — 0.05 1 mA VCC = 5.5V, SCL = 1 MHz
D11 ICCS Standby Current
— 0.01 1 µA
SDA = SCL = VCC,
A0, A1, A2, WP = VSS,
I-Temp.
— — 5 µA
SDA = SCL = VCC,
A0, A1, A2, WP = VSS,
E-Temp.
Note 1: This parameter is periodically sampled and not 100% tested.

Especificaciones del producto

Marca: Microchip
Categoría: No categorizado
Modelo: 34AA02

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