6 / 27 page CY7C1366A/GVT71256C36 CY7C1367A/GVT71512C18 6 (a) 6P, 7P, 7N, 6N, 6M, 6L, 7L, 6K, 7K, (b) 7H, 6H, 7G, 6G, 6F, 6E, 7E, 7D, 6D, (c) 2D, 1D, 1E, 2E, 2F, 1G, 2G, 1H, 2H, (d) 1K, 2K, 1L, 2L, 2M, 1N, 2N, 1P, 2P (a) 51, 52, 53, 56, 57, 58, 59, 62, 63 (b) 68, 69, 72, 73, 74, 75, 78, 79, 80 (c) 1, 2, 3, 6, 7, 8, 9, 12, 13 (d) 18, 19, 22, 23, 24, 25, 28, 29, 30 DQa DQb DQc DQd Input/ Output Data Inputs/Outputs: First Byte is DQa. Second Byte is DQb. Third Byte is DQc. Fourth Byte is DQd. Input data must meet set-up and hold times around the rising edge of CLK. 2U 3U 4U 38 39 43 for B and T version TMS TDI TCK Input IEEE 1149.1 test inputs. LVTTL-level inputs. Not available for TA package version. 5U 42 for B and T version TDO Output IEEE 1149.1 test output. LVTTL-level output. Not available for TA package version. 4C, 2J, 4J, 6J, 4R 15, 41,65, 91 VCC Supply Core power Supply: +3.3V –5% and +10% 3D, 5D, 3E, 5E, 3F, 5F, 3H, 5H, 3K, 5K, 3M, 5M, 3N, 5N, 3P, 5P 5, 10, 17, 21, 26, 40, 55, 60, 67, 71, 76, 90 VSS Ground Ground: GND. 1A, 7A, 1F, 7F, 1J, 7J, 1M, 7M, 1U, 7U 4, 11, 20, 27, 54, 61, 70, 77 VCCQ I/O Supply Output Buffer Supply: +2.5V or +3.3V. 1B, 7B, 1C, 7C, 4D, 3J, 5J, 4L, 1R, 5R, 7R, 1T, 2T, 6T, 6U 14, 16, 66 38, 39, 42 for TA Version NC - No Connect: These signals are not internally connected. User can leave it floating or connect it to VCC or VSS. 256K X 36 Pin Descriptions (continued) X36 PBGA Pins X36 QFP Pins Name Type Description 512K X 18 Pin Descriptions X18 PBGA Pins X18 QFP Pins Name Type Description 4P 4N 2A, 3A, 5A, 6A, 3B, 5B, 6B, 2C, 3C, 5C, 6C, 2R, 6R, 2T, 3T, 5T, 6T 37 36 35, 34, 33, 32, 100, 99, 82, 81, 80, 48, 47, 46, 45, 44, 49, 50 92 (T Version) 43 (TA Version) A0 A1 A Input- Synchronous Addresses: These inputs are registered and must meet the set-up and hold times around the rising edge of CLK. The burst counter generates internal addresses associated with A0 and A1, during burst cycle and wait cycle. 5L 3G 93 94 BWa BWb Input- Synchronous Byte Write Enables: A byte write enable is LOW for a WRITE cycle and HIGH for a READ cycle. BWa controls DQa. BWb controls DQb. Data I/O are high impedance if either of these inputs are LOW, conditioned by BWE being LOW. 4M 87 BWE Input- Synchronous Write Enable: This active LOW input gates byte write opera- tions and must meet the set up and hold times around the rising edge of CLK. 4H 88 GW Input- Synchronous Global Write: This active LOW input allows a full 18-bit WRITE to occur independent of the BWE and WEn lines and must meet the set up and hold times around the rising edge of CLK. 4K 89 CLK Input- Synchronous Clock: This signal registers the addresses, data, chip enables, write control and burst control inputs on its rising edge. All synchronous inputs must meet setup and hold times around the clock’s rising edge. 4E 98 CE Input- Synchronous Chip Enable: This active LOW input is used to enable the de- vice and to gate ADSP. |
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