64 Mbit Multi-Purpose Flash Plus
A Microchip Technology Company
SST39VF6401B / SST39VF6402B
Not Recommended for New Designs
Security ID
The SST39VF640xB devices offer a 256-bit Security ID space. The Secure ID space is divided into two
128-bit segments - one factory programmed segment and one user programmed segment. The first
segment is programmed and locked at SST with a random 128-bit number. The user segment is left
un-programmed for the customer to program as desired.
To program the user segment of the Security ID, the user must use the Security ID Word-Program
command. To detect end-of-write for the SEC ID, read the toggle bits. Do not use Data# Polling. Once
this is complete, the Sec ID should be locked using the User Sec ID Program Lock-Out. This disables
any future corruption of this space. Note that regardless of whether or not the Sec ID is locked, neither
Sec ID segment can be erased.
The Secure ID space can be queried by executing a three-byte command sequence with Enter Sec ID
command (88H) at address 555H in the last byte sequence. To exit this mode, the Exit Sec ID com-
mand should be executed. Refer to Table 6 for more details.
?2011 Silicon Storage Technology, Inc.
12
DS25008A
08/11
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SST39VF6401B704IEKE 制造商:Microchip Technology Inc 功能描述:
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SST39VF6401B-70-4I-EKE-T-CUT TAPE 制造商:Microchip 功能描述:SST39VF Series 64 Mb (4 M x 16) 3.6 V Multi-Purpose Flash Plus SMT - TSOP-48
SST39VF6402B-70-4C-B1KE 功能描述:闪存 64M (4Mx16) 70ns Commercial Temp RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel
SST39VF6402B-70-4C-B1KE-T 功能描述:闪存 2.7 to 3.6V 64Mbit Multi-Purpose 闪存 RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel
SST39VF6402B-70-4C-EKE 功能描述:闪存 64M (4Mx16) 70ns Commercial Temp RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel