M29W400DB70N6 NUMONYX, M29W400DB70N6 Datasheet - Page 44

• Manufacturer Part Number: M29W400DB70N6
• Description: IC FLASH 4MBIT 70NS 48TSOP
• Manufacturer: NUMONYX
• Series: Axcell™r

Specifications of M29W400DB70N6

• Format - Memory: FLASH
• Memory Type: FLASH - Nor
• Memory Size: 4M (512K x 8 or 256K x 16)
• Speed: 70ns
• 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

Block protection
44/48
Figure 20. Programmer equipment chip unprotect flowchart
NO
E, G = V IH
A9 = V IH
= 1000
FAIL
++n
YES
ADDRESS = CURRENT BLOCK ADDRESS
PROTECT ALL BLOCKS
CURRENT BLOCK = 0
A0 = V IL , A1, A6 = V IH
NO
A6, A12, A15 = V IH
E, G, A9 = V ID
Read DATA
Wait 10 ms
E, G = V IH
Wait 60 ns
Wait 4 µs
Wait 4 µs
W = V IH
W = V IL
E = V IL
G = V IL
START
DATA
n = 0
00h
=
YES
E, G = V IH
A9 = V IH
BLOCK
PASS
LAST
M29W400DT, M29W400DB
YES
CURRENT BLOCK
INCREMENT
NO
AI03470