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TMS29F010-70CSFME Datasheet(PDF) 5 Page - Texas Instruments |
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TMS29F010-70CSFME Datasheet(HTML) 5 Page - Texas Instruments |
5 / 36 page TMS29F010 131072 BY 8-BIT FLASH MEMORY SMJS840A – NOVEMBER 1997 – REVISED JUNE 1998 5 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 operation Table 1 summarizes the operation modes. Table 1. Operation Modes MODE FUNCTIONS† MODE E G W A0 A1 A6 A9 DQ0 – DQ7 Read VIL VIL VIH A0 A1 A6 A9 Data out Output disable VIL VIH VIH X X X X Hi-Z Standby and write inhibit VIH X X X X X X Hi-Z Algorithm-selection mode VIL VIL VIH VIL VIL X VID Manufacturer-equivalent code 01h g IL IL IH VIH IL X ID Device-equivalent code 20h Write‡ VIL VIH VIL A0 A1 A6 A9 Data in Sector-protect§ VIL VID VIL X X X VID X Sector-protect verify§ VIL VIL VIH VIL VIH VIL VID Data out Sector-unprotect§ (see Note 1) VID VID VIL X X VIL VID X Sector-unprotect verify§ VIL VIL VIH VIL VIH VIH VID Data out Erase operations VIL VIH See Note 2 See Note 2 See Note 2 See Note 2 See Note 2 See Note 2 † X can be VIL or VIH. ‡ See Table 3 for valid address and data during write (byte program). § Operation at VCC = 5.0 V and TA = 25°C. NOTES: 1. Address pins A7, A12 = VIH. 2. See Figure 6 through Figure 9. read mode To read the output of the TMS29F010, a low-level logic signal is applied to the E and G pins. When two or more TMS29F010 devices are connected in parallel, the output of any one device can be read without interference. The E pin is power control and is used for device selection. The G pin is output control and is used to gate the data output onto the bus from the selected device. The address-access time (tAVQV) is the delay from stable address to valid output data. The chip-enable access time (tELQV) is the delay from E = VIL and stable addresses to valid output data. The output-enable access time (tGLQV) is the delay from G = VIL to valid output data when E = VIL and addresses are stable for at least the duration of tAVQV–tGLQV. standby mode The ICC supply current is reduced by applying a logic-high level on E to enter the standby mode. In the standby mode, the outputs are placed in the high-impedance state. Applying a CMOS logic-high level on E reduces the current to 100 µA maximum. Applying a TTL logic-high level on E reduces the current to 1 mA maximum. If the TMS29F010 is deselected during erasure or programming, the device continues to draw active current until the operation is complete. output disable When either G = VIH or E = VIH, output from the device is disabled and the output pins (DQ0–DQ7) are placed in the high-impedance state. |
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