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IDT707278L20PF Datasheet(PDF) 3 Page - Integrated Device Technology |
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IDT707278L20PF Datasheet(HTML) 3 Page - Integrated Device Technology |
3 / 16 page 6.42 IDT707278S/L 32K x 16 Bank-Switchable Dual-Ported SRAM with External Bank Selects Industrial and Commercial Temperature Ranges 3 INDEX 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 10099 98 97 9695 94 93 92 9190 8988 87 86 8584 8382 81 8079 7877 76 IDT707278 PN100-1 100-PIN TQFP TOP VIEW(3) GND OER R/ WR MBSELR CE1R CE0R BKSEL3 NC GND A9R A10R A8R A7R A6R A11R I/O10R I/O11R I/O12R I/O13R I/O14R I/O15R GND UBR LBR 3739 drw 02 I/O15L GND OEL R/ WL MBSELL CE1L CE0L Vcc BKSEL0 A11L A10L NC A9L A8L A7L A6L I/O10L I/O11L I/O12L I/O13L I/O14L UBL LBL GND NC NC . Pin Names NOTES: 1. All VCC pins must be connected to power supply. 2. All GND pins must be connected to ground supply. 3. Package body is approximately 14mm x 14mm x 1.4mm. 4. This package code is used to reference the package diagram. 5. This text does not indicate orientation of the actual part-marking. NOTES: 1. Duplicated per port. 2. Each bank has an input pin assigned that allows the user to toggle the assignment of that bank between the two ports. Refer to Truth Table IV for more details. When changing the bank assignments, accesses of the affected banks must be suspended. Accesses may continue uninterrupted in banks that are not being reallocated. 3. Generated upon mailbox access. 4. All Vcc pins must be connected to power supply. 5. All GND pins must be connected to ground supply. 6. The first six address pins (A0-A5) for each port serve dual functions. When MBSEL = VIH, the pins serve as memory address inputs. When MBSEL = VIL, the pins serve as mailbox address inputs (A6-A12 ignored). Pin Configurations(1,2,3) A0 - A12 (1,6) Address Inputs BA0 - BA1 (1) Bank Address Inputs MBSEL(1) Mailbox Access Control Gate BKSEL0-3 (2) Bank Select Inputs R/ W(1) Read/Write Enable OE(1) Output Enable CE0, CE1(1) Chip Enables UB, LB(1) I/O Byte Enables I/O0 - I/O15 (1) Bidirectional Data Input/Output INT(1) Interrupt Flag (Output) (3) VCC (4) +5VPower GND (5) Ground 3739 tbl 01 |
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