M29W400BB90N6 NUMONYX, M29W400BB90N6 Datasheet - Page 3

• Manufacturer Part Number: M29W400BB90N6
• Description: IC FLASH 4MBIT 90NS 48TSOP
• Manufacturer: NUMONYX

Specifications of M29W400BB90N6

• Format - Memory: FLASH
• Memory Type: FLASH - Nor
• Memory Size: 4M (512K x 8 or 256K x 16)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1715

Figure 4. TFBGA Connections (Top view through package)
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.
G
A
B
C
D
E
F
H
V SS
A3
A4
A2
A1
A0
G
E
1
DQ0
DQ8
DQ9
DQ1
A17
A7
A6
A5
2
DQ10
DQ11
DQ2
DQ3
RB
NC
NC
NC
3
DQ12
DQ5
V CC
DQ4
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),
TFBGA48 (0.8mm pitch) and SO44 packages and
it is supplied with all the bits erased (set to ’1’).
RP
NC
NC
W
4
DQ14
DQ13
DQ7
DQ6
A10
A11
A9
A8
5
BYTE
DQ15
V SS
A13
A12
A14
A15
A16
A–1
M29W400BT, M29W400BB
6
AI03988
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