AT45DB011 Datasheet, PDF (1/19 Pages) ATMEL Corporation – 1-Megabit 2.7-volt Only Serial DataFlash

Features
• Single 2.7V - 3.6V Supply
• Serial Interface Architecture
• Page Program Operation
– Single Cycle Reprogram (Erase and Program)
– 512 Pages (264 Bytes/Page) Main Memory
• Optional Page and Block Erase Operations
• One 264-Byte SRAM Data Buffer
• Internal Program and Control Timer
• Fast Page Program Time – 7 ms Typical
• 120 µs Typical Page to Buffer Transfer Time
• Low-Power Dissipation
– 4 mA Active Read Current Typical
– 2 µA CMOS Standby Current Typical
• 13 MHz Max Clock Frequency
• Hardware Data Protection Feature
• Serial Peripheral Interface (SPI) Compatible – Modes 0 and 3
• CMOS and TTL Compatible Inputs and Outputs
• Commercial and Industrial Temperature Ranges
Description
The AT45DB011 is a 2.7-volt only, serial interface Flash memory suitable for in-sys-
tem reprogramming. Its 1,081,344 bits of memory are organized as 512 pages of 264
bytes each. In addition to the main memory, the AT45DB011 also contains one SRAM
data buffer of 264 bytes. Unlike conventional Flash memories that are accessed ran-
domly with multiple address lines and a parallel interface, the DataFlash uses a serial
interface to sequentially access its data. The simple serial interface facilitates hard-
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Pin Configurations
SOIC
Pin Name
CS
SCK
SI
Function
Chip Select
Serial Clock
Serial Input
SI 1
SCK 2
RESET 3
CS 4
8 SO
7 GND
6 VCC
5 WP
SO
Serial Output
WP
Hardware Page
Write Protect Pin
RESET
Chip Reset
RDY/BUSY Ready/Busy
PLCC
TSSOP Top View
Type 1
SCK 5
SI 6
SO 7
NC 8
NC 9
NC 10
NC 11
NC 12
NC 13
29 WP
28 RESET
27 RDY/BUSY
26 NC
25 NC
24 NC
23 NC
22 NC
21 NC
RDY/BUSY 1
RESET 2
WP 3
VCC 4
GND 5
SCK 6
SO 7
14 CS
13 NC
12 NC
11 NC
10 NC
9 NC
8 SI
Note: PLCC package pins 16
and 17 are DON’T CONNECT
1-Megabit
2.7-volt Only
Serial
DataFlash^®
AT45DB011
Preliminary
AT45DB011
Preliminary 16-
Megabit 2.7-volt
Only Serial
DataFlash
Rev. 1103C–08/98
1