27C1001 Datasheet | STMicroelectronics

DESCRIPTION The M27C1001 is a 1 Mbit EPROM offered in the two ranges UV (ultra violet erase) and OTP (one time programmable). It is ideally suited for microprocessor systems requiring large programs and is organized as 131,072 words of 8 bits. The FDIP32W (window ceramic frit-seal package) and the LCCC32W (leadless chip carrier package) have a transparent lids which allow the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure. For applications where the content is programmed only one time and erasure is not required, the M27C1001 is offered in PDIP32, PLCC32 and TSOP32 (8 x 20 mm) packages. LCCC32W (L) PLCC32 (K) TSOP32 (N) 8 x 20 mm Figure 1. Logic Diagram 17 A0-A16 8 Q0-Q7 M27C1001 AI00710B January 2000 1/17 M27C1001 Figure 2A. DIP Connections Figure 2B. LCC Connections VPP A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 Q0 Q1 Q2 VSS 1 32 2 31 3 30 4 29 5 28 6 27 7 26 8 25 M27C1001 9 24 10 23 11 22 12 21 13 20 14 19 15 18 16 17 AI00711 VCC P NC A14 A13 A8 A9 A11 G A10 E Q7 Q6 Q5 Q4 Q3 A7 A6 A5 A4 A3 A2 A1 A0 Q0 A12 A15 A16 VPP VCC P NC 1 32 A14 A13 A8 A9 A11 G A10 E Q7 9 M27C1001 25 17 VSS Q3 Q4 Q5 Q6 AI00712 Figure 2C. TSOP Connections Table 1. Signal Names A0-A16 Q0-Q7 Address Inputs Data Outputs Chip Enable Output Enable Program Program Supply Supply Voltage Ground Not Connected Internally A11 A9 A8 A13 A14 NC P VCC VPP A16 A15 A12 A7 A6 A5 A4 8 9 M27C1001 (Normal) 25 24 AI01151B G A10 E Q7 Q6 Q5 Q4 Q3 VSS Q2 Q1 Q0 A0 A1 A2 A3 E G P VPP VCC VSS...