Rainbow-electronics AT27LV020A Manuel d'utilisateur

1Features• Fast Read Access Time - 90 ns• Dual Voltage Range Operation– Low Voltage Power Supply Range, 3.0V to 3.6V– or Standard 5V ± 10% Supply Rang

AT27LV020A10Ordering InformationtACC(ns)ICC (mA)VCC = 3.6VOrdering Code Package Operation RangeActive Standby90 8 0.02 AT27LV020A-90JCAT27LV020A-90TCA

AT27LV020A11Packaging Information.045(1.14) X 45˚PIN NO. 1IDENTIFY.025(.635) X 30˚ - 45˚.012(.305).008(.203).021(.533).013(.330).530(13.5).490(12.4).0

© Atmel Corporation 2001.Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standa

AT27LV020A2Atmel’s innovative design techniques provide fast speedsthat rival 5V parts while keeping the low power consump-tion of a 3V supply. At VCC

AT27LV020A3Note: 1. Minimum voltage is -0.6V DC which may undershoot to -2.0V for pulses of less than 20 ns. Maximum output pin voltage is VCC + 0.75V

AT27LV020A4Notes: 1. VCC must be applied simultaneously with or before VPP, and removed simultaneously with or after VPP.2. VPP may be connected direc

AT27LV020A5AC Waveforms for Read OperationNotes: 1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless

AT27LV020A6Input Test Waveform and Measurement LeveltR, tF < 20 ns (1% to 90%)Output Test LoadNote: CL = 1 pF including jig capacitance.Note: 1. Ty

AT27LV020A7Programming Waveforms(1)Notes: 1. The Input Timing Reference is 0.8V for VIL and 2.0V for VIH.2. tOE and tDFP are characteristics of the de

AT27LV020A8Notes: 1. VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.2. This parameter is only sampled and is

AT27LV020A9Rapid Programming AlgorithmA 100 µs PGM pulse width is used to program. Theaddress is set to the first location. VCC is raised to 6.5V andV