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A29L800B Datasheet(PDF) 6 Page - AMIC Technology |
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A29L800B Datasheet(HTML) 6 Page - AMIC Technology |
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6 / 37 page  A29L800B Series (August, 2014, Version 1.2) 5 AMIC Technology, Corp. Absolute Maximum Ratings* Storage Temperature Plastic Packages……… -65 °C to +150°C Ambient Temperature with Power Applied…... -55 °C to +125°C Voltage with Respect to Ground VCC (Note 1) …………………. ………………………………………………………. -0.5V to +4.0V A9, OE & RESET (Note 2)…………………….. -0.5 to +11.5V All other pins (Note 1)……………………… -0.5V to VCC + 0.5V Output Short Circuit Current (Note 3)……………………. 200mA Notes: 1. Minimum DC voltage on input or I/O pins is -0.5V. During voltage transitions, input or I/O pins may undershoot VSS to -2.0V for periods of up to 20ns. Maximum DC voltage on input and I/O pins is VCC + 0.5V. During voltage transitions, input or I/O pins may overshoot to VCC + 2.0V for periods up to 20ns. 2. Minimum DC input voltage on A9, OE and RESET is -0.5V. During voltage transitions, A9, OE and RESET may overshoot VSS to -2.0V for periods of up to 20ns. Maximum DC input voltage on A9 is +11.5V which may overshoot to 12.5V for periods up to 20ns. 3. No more than one output is shorted at a time. Duration of the short circuit should not be greater than one second. *Comments Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to this device. These are stress ratings only. Functional operation of this device at these or any other conditions above those indicated in the operational sections of these specification is not implied or intended. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability. Operating Ranges Commercial (C) Devices Ambient Temperature (TA) ……………………… 0 °C to +70°C Extended Range Devices Ambient Temperature (TA)……………………. -40 °C to +85°C VCC Supply Voltages VCC for all devices……………………………. +2.7V to +3.6V Operating ranges define those limits between which the functionally of the device is guaranteed. Device Bus Operations This section describes the requirements and use of the device bus operations, which are initiated through the internal command register. The command register itself does not occupy any addressable memory location. The register is composed of latches that store the commands, along with the address and data information needed to execute the command. The contents of the register serve as inputs to the internal state machine. The state machine outputs dictate the function of the device. The appropriate device bus operations table lists the inputs and control levels required, and the resulting output. The following subsections describe each of these operations in further detail. Table 1. A29L800B Device Bus Operations I/O8 - I/O15 Operation CE OE WE RESET A0 – A18 (Note 1) I/O0 - I/O7 BYTE =VIH BYTE =VIL Read L L H H AIN DOUT DOUT I/O8~I/O14=High-Z I/O15=A-1 Write L H L H AIN DIN DIN I/O8~I/O14=High-Z I/O15=A-1 CMOS Standby VCC ± 0.3V X X VCC ± 0.3V X High-Z High-Z High-Z Output Disable L H H H X High-Z High-Z High-Z Hardware Reset X X X L X High-Z High-Z High-Z Sector Protect (See Note 2) L H L VID Sector Address, A6=L, A1=H, A0=L DIN X X Sector Unprotect (See Note 2) L H L VID Sector Address, A6=H, A1=H, A0=L DIN X X Temporary Sector Unprotect X X X VID AIN DIN DIN X Legend: L = Logic Low = VIL, H = Logic High = VIH, VID = 10.5 ± 1.0V, X = Don't Care, DIN = Data In, DOUT = Data Out, AIN = Address In Notes: 1. Addresses are A18:A0 in word mode ( BYTE=VIH), A18: A-1 in byte mode (BYTE=VIL). 2. See the “Sector Protection/Unprotection” section and Temporary Sector Unprotect for more information. |
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