at25128b ATMEL Corporation, at25128b Datasheet - Page 2

• Manufacturer Part Number: at25128b
• Description: Spi Serial Eeproms
• Manufacturer: ATMEL Corporation

Figure 1.
GND
Table 1.
Block Write protection is enabled by programming the status register with top ¼, top ½ or entire array of write protection.
Separate Program Enable and Program Disable instructions are provided for additional data protection. Hardware data
protection is provided via the
used to suspend any serial communication without resetting the serial sequence.
2
SCK
SI
SO
GND
V
NC
WP
CS
SO
CC
8-lead PDIP
Pin
1
2
3
4
AT25128B/256B [Preliminary]
Pin Configurations
Pin Configurations
8
7
6
5
8-lead Ultra-Thin Mini-MAP
HOLD
SCK
V
CC
SI
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Write Protect
Suspends Serial Input
No Connect
V
HOLD
SCK
SI
CC
Bottom View
8
7
6
5
Function
GND
1
2
3
4
WP
SO
CS
CS
SO
WP
GND
pin to protect against inadvertent write attempts to the status register. The
8-lead SOIC
1
2
3
4
8
7
6
5
HOLD
SCK
V
V
HOLD
SCK
SI
CC
SI
CC
8-ball dBGA2
Bottom View
8
7
6
5
GND
WP
SO
CS
1
2
3
4
CS
SO
WP
GND
8-lead TSSOP
1
2
3
4
8
7
6
5
V
HOLD
SCK
SI
CC
8593A–SEEPR–01/09
pin may be