M29W640GH, M29W640GL, M29W640GT, M29W640GB
Table 2.
Signal names
(1)
Name
A0-A21
DQ0-DQ7
DQ8-DQ14
DQ15A–1 (or DQ15)
E
G
W
RP
RB
BYTE
V
CC
V
PP
/WP
V
SS
NC
Address Inputs
Data Inputs/Outputs
Data Inputs/Outputs
Data Input/Output or Address Input (or Data Input/Output)
Chip Enable
Output Enable
Write Enable
Reset/Block Temporary Unprotect
Ready/Busy
Byte/Word Organization Select
Supply Voltage
Supply Voltage for Fast Program (optional) or Write Protect
Ground
Not Connected Internally
Description
Description
Direction
Inputs
Inputs/Outputs
Inputs/Outputs
Inputs/Outputs
Input
Input
Input
Input
Output
Input
Supply voltage
Supply voltage
-
-
1. V
PP
/WP may be left floating since it is internally connected to an pull-up resistor to enable Program/Erase operations,
Table 3.
Block
0 to 3
4 to 7
--
120 to 123
124 to 127
Protection granularity on the M29W640GH and M29W640GL
Kbytes/Kwords
4 x 64/32
4 x 64/32
--
4 x 64/32
4x 64/32
Protection Block Group
Block level
Protection Group
--
Protection Group
Block level
(x8)
000000h–03FFFFh
(1)
040000h–07FFFFh
--
780000h–7BFFFFh
7C0000h–7FFFFFh
(x16)
000000h–01FFFFh
(1)
020000h–03FFFFh
--
3C0000h–3DFFFFh
3E0000h–3FFFFFh
1. Used as the Extended Block Addresses in Extended Block mode.
Table 4.
Block
0 to 3
4 to 7
--
120 to 123
124 to 126
127 to 134
Protection granularity on the M29W640GT
Kbytes/Kwords
4 x 64/32
4 x 64/32
--
4 x 64/32
3 x 64/32
8x 8/4
(2)
Protection Block Group
Protection Group
Protection Group
--
Protection Group
Protection Group
Block level
(x8)
000000h–03FFFFh
(1)
040000h–07FFFFh
--
780000h–7BFFFFh
7C0000h–7EFFFFh
7F0000h–7FFFFFh
(x16)
000000h–01FFFFh
(1)
020000h–03FFFFh
--
3C0000h–3DFFFFh
3E0000h–3F7FFFh
3F8000h–3FFFFFh
1. Used as the Extended Block Addresses in Extended Block mode.
2. Boot blocks.
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NUMONYX [ NUMONYX B.V ]
