AT24C1024B-PU25 Atmel, AT24C1024B-PU25 Datasheet - Page 10
![IC EEPROM 1MBIT 1MHZ 8DIP](/photos/6/50/65033/313-8-dip_sml.jpg)
AT24C1024B-PU25
Manufacturer Part Number
AT24C1024B-PU25
Description
IC EEPROM 1MBIT 1MHZ 8DIP
Manufacturer
Atmel
Datasheet
1.AT24C1024BN-SH25-B.pdf
(25 pages)
Specifications of AT24C1024B-PU25
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
1M (128K x 8)
Speed
1MHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-DIP (0.300", 7.62mm)
Organization
128 K x 8
Interface Type
2-Wire
Maximum Clock Frequency
1 MHz
Access Time
550 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.8 V
Maximum Operating Current
3 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
3.3 V, 5 V
Memory Configuration
131072 X 8
Clock Frequency
1MHz
Supply Voltage Range
1.8V To 5.5V
Memory Case Style
DIP
No. Of Pins
8
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT24C1024B-PU25
Manufacturer:
ATMEL
Quantity:
1 011
Once the device address with the read/write select bit set to one is clocked in and acknowledged
by the EEPROM, the current address data word is serially clocked out. The microcontroller does
not respond with an input zero but does generate a following stop condition (see
Figure 7-4 on
page
11).
RANDOM READ: A random read requires a “dummy” byte write sequence to load in the data
word address. Once the device address word and data word address are clocked in and
acknowledged by the EEPROM, the microcontroller must generate another start condition. The
microcontroller now initiates a current address read by sending a device address with the
read/write select bit high. The EEPROM acknowledges the device address and serially clocks
out the data word. The microcontroller does not respond with a zero but does generate a follow-
ing stop condition (see
Figure 7-5 on page
12).
SEQUENTIAL READ: Sequential reads are initiated by either a current address read or a ran-
dom address read. After the microcontroller receives a data word, it responds with an
acknowledge. As long as the EEPROM receives an acknowledge, it will continue to increment
the data word address and serially clock out sequential data words. When the memory address
limit is reached, the data word address will “roll over” and the sequential read will continue. The
sequential read operation is terminated when the microcontroller does not respond with a zero,
but does generate a following stop condition (see
Figure 7-6 on page
12).
AT24C1024B
10
5194F–SEEPR–1/08