3 / 14 page  CY7C1021CV33 Document Number: 38-05132 Rev. *I Page 3 of 14 Pin Definitions Pin Name SOJ, TSOP Pin Number BGA Pin Number IO Type Description A0–A15 1–5, 18–21, 24–27, 42–44 A3, A4, A5, B3, B4, C3, C4, D4, H2, H3, H4, H5, G3, G4, F3, F4 Input Address Inputs. Used to select one of the address locations. IO1–IO16 [2] 7–10, 13–16, 29–32, 35–38 B6, C6, C5, D5, E5, F5, F6, G6, B1, C1, C2, D2, E2, F2, F1, G1 Input or Output Bidirectional Data IO lines. Used as input or output lines depending on operation. NC 22, 23, 28 A6, D3, E3, E4, G2, H1, H6 No Connect No Connects. Not connected to the die. WE 17 G5 Input or Control Write Enable Input, Active LOW. When selected LOW, a write is conducted. When deselected HIGH, a read is conducted. CE 6 B5 Input or Control Chip Enable Input, Active LOW. When LOW, selects the chip. When HIGH, deselects the chip. BHE, BLE 40, 39 B2, A1 Input or Control Byte Write Select Inputs, Active LOW. BHE controls IO16 – IO9, BLE controls IO8 – IO1. OE 41 A2 Input or Control Output Enable, Active LOW. Controls the direction of the IO pins. When LOW, the IO pins are allowed to behave as outputs. When deasserted HIGH, the IO pins are tri-stated and act as input data pins. VSS 12, 34 D1, E6 Ground Ground for the Device. Connected to ground of the system. VCC 11, 33 D6, E1 Power Supply Power Supply Inputs to the Device. Note 2. IO1–IO16 for SOJ/TSOP and IO0–IO15 for BGA packages. [+] Feedback |
|
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
