器件名称: ST1200
功能描述: Memory Card IC 256 bit OTP EPROM with Lock-Out
文件大小: 24.51KB 共2页
简 介:ST1200
Memory Card IC 256 bit OTP EPROM with Lock-Out
DATA BRIEFING
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256 x 1 bit Organisation 96 bits Protected in Write Mode By Lock-Out Fuse 5 V Power Supply (VCC) and 21 V Programming Voltage (VPP) 85 mW in Read Mode Power On Reset
1 1 1 1
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Very High Reliability Level Standard Delivery: Wafer Form and Micromodule Package
Micromodule (D10)
DESCRIPTION The ST1200 is a 256 bit OTP (one time programmable) EPROM, organized as 256 x 1, manufactured using ST’s highly reliable and well proven NMOS technology. The security mechanism, called Lock-Out, allows the user to inhibit, in write mode, the access to a memory section of 96 bits. Thus, by blowing a polysilicon fuse, the address bits 0 to 95 can be protected against write. The 9th bit of the ST1200 is set to a logical “1” for device identification purposes. In order to avoid any modification, ST has mask-programmed this bit to the logic “1” state.
Wafer
Figure 1. Logic Diagram
VCC VPP
Table 1. Signal Names
A B FUS OUT Function code Function code Fuse control Data Output Strobe input - validates function codes - in programming mode used as a programming pulse Programming voltage (must be preset before programming and held after) Power Ground
ST A B ST1200
OUT
ST
FUS
VPP VCC
GND
GND
DS120005
October 1999
Complete data available under NDA.
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ST1200
The ST1200 is available in wafer form (either sawn or unsawn) and in micromodule form (on film). For deliveries in wafer form, the memory content is at l……