3/22

M29F100BT, M29F100BB

The blocks in the memory are asymmetrically ar-

ranged, see Tables 3 and 4, Block Addresses. The

first or last 64 Kbytes have been divided into four

additional blocks. The 16 Kbyte Boot Block can be

used for small initialization code to start the micro-

processor, the two 8 Kbyte Parameter Blocks can

be used for parameter storage and the remaining

32K is a small Main Block where the application

may be stored.

Chip Enable, Output Enable and Write Enable sig-

nals control the bus operation of the memory.

They allow simple connection to most micropro-

cessors, often without additional logic.

The memory is offered in TSOP48 (12 x 20mm)

and SO44 packages and it is supplied with all the

bits erased (set to ’1’).

Note: 1. Except for the rating ”Operating Temperature Range”, stresses above those listed in the Table ”Absolute Maximum Ratings” may

cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions

above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating condi-

tions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant qual-

ity documents.

2. Minimum Voltage may undershoot to –2V during transition and for less than 20ns during transitions.

Symbol

Parameter

Value

Unit

Ambient Operating Temperature (Temperature Range Option 1)

0 to 70

°C

Ambient Operating Temperature (Temperature Range Option 6)

–40 to 85

°C

Ambient Operating Temperature (Temperature Range Option 3)

–40 to 125

°C

Temperature Under Bias

–50 to 125

°C

Storage Temperature

–65 to 150

°C

(2)

Input or Output Voltage

–0.6 to 6

V

Supply Voltage

–0.6 to 6

V

Identification Voltage

–0.6 to 13.5

V

Table 3. Top Boot Block Addresses

M29F100BT

#

Size

(Kbyte

s)

Address Range

(x8)

Address Range

(x16)

4

16

1C000h-1FFFF h

E000h-FFFFh

3

8

1A000h-1BFFFh

D000h-DFFFh

2

8

18000h-19FFFh

C000h-CFFFh

1

32

10000h-17FFFh

8000h-BFFFh

0

64

00000h-0FFFF h

0000h-7FFFh

Table 4. Bottom Boot Block Addresses

M29F100BB

#

Size

(Kbyte

s)

Address Range

(x8)

Address Range

(x16)

4

64

10000h-1FFFFh

8000h-FFFFh

3

32

08000h-0FFFFh

4000h-7FFFh

2

8

06000h-07FFFh

3000h-3FFFh

1

8

04000h-05FFFh

2000h-2FFFh

0

16

00000h-03FFFh

0000h-1FFFh