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M27W064-100N1T 数据表(PDF) 4 Page - STMicroelectronics |
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M27W064-100N1T 数据表(HTML) 4 Page - STMicroelectronics |
4 / 23 page M27W064 4/23 SUMMARY DESCRIPTION The M27W064 is a 64 Mbit (4Mb x16) non-volatile, One Time Programmable (OTP), FlexibleROM™ Memory. Read operations can be performed using a single low voltage (2.7 to 3.6V) supply. Program operations require an additional VPP (11.4 to 12.6V) power supply. On power-up the memory defaults to Read mode where it can be read in the same way as a ROM or EPROM. Program commands are written to the Command Interface of the memory. An on-chip Program Con- troller (PC) simplifies the process of programming the memory by taking care of all of the special op- erations that are required to update the memory contents. The M27W064 features an innovative command, Multiple Word Program, used to program large streams of data. It greatly reduces the total pro- gramming time when a large number of Words are written to the memory at any one time. Using this command the entire memory can be programmed in 8s, compared to 36s using the standard Word Program. The end of a program operation can be detected and any error conditions identified. The command set required to control the memory is consistent with JEDEC standards. Chip Enable and Output Enable signals control the bus operation of the memory. They allow simple connection to most microprocessors, often without additional logic. The memory is offered in SO44 and TSOP48 (12 x 20mm) packages. The memory is supplied with all the bits set to ’1’. Figure 2. Logic Diagram Table 1. Signal Names AI05960 22 A0-A21 DQ0-DQ15 VCC M27W064 E VSS 16 G VPP A0-A21 Address Inputs DQ0-DQ15 Data Inputs/Outputs E Chip Enable G Output Enable VCC Supply Voltage read VPP Supply Voltage program VSS Ground NC Not Connected Internally |
类似零件编号 - M27W064-100N1T |
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类似说明 - M27W064-100N1T |
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