AT94S40 ATMEL Corporation, AT94S40 Datasheet - Page 16

• Manufacturer Part Number: AT94S40
• Description: Secure 5K - 40K Gates of At40k FPGA with 8-bit Microcontroller,up to 36 Kbytes of SRAM and On-chip Program Storage Eeprom
• Manufacturer: ATMEL Corporation

Chip Erase Timing
16
AT94S Secure Family
The entire device can be erased at once by writing to a specific address. This operation
will erase the entire array. See Table 2 for specifics on the write algorithm.
Table 2. Chip Erase Cycle Characteristics
Figure 6. Chip Erase Timing Diagram
Symbol
Tec
SDA
SCL
tsu.dat
8th BIT
Parameter
Chip Erase Cycle Time (25 ms)
ACK
tnd.dat
thigh
tlow
Condition
STOP
Tec
2314D–FPSLI–2/04
Condition
START