4 / 17 page  CY7C1338F Document #: 38-05218 Rev. *A Page 4 of 17 ADV 83 G4 Input- Synchronous Advance Input signal, sampled on the rising edge of CLK. When asserted, it automatically increments the address in a burst cycle. ADSP 84 A4 Input- Synchronous Address Strobe from Processor, sampled on the rising edge of CLK, active LOW. When asserted LOW, addresses presented to the device are captured in the address registers. A[1:0] are also loaded into the burst counter. When ADSP and ADSC are both asserted, only ADSP is recog- nized. ASDP is ignored when CE1 is deasserted HIGH ADSC 85 B4 Input- Synchronous Address Strobe from Controller, sampled on the rising edge of CLK, active LOW. When asserted LOW, addresses presented to the device are captured in the address registers. A[1:0] are also loaded into the burst counter. When ADSP and ADSC are both asserted, only ADSP is recognized. ZZ 64 T7 Input- Asynchronous ZZ “sleep” Input, active HIGH. When asserted HIGH places the device in a non-time-critical “sleep” condition with data integrity preserved. For normal operation, this pin has to be LOW or left floating. ZZ pin has an internal pull-down. DQs 52,53,56, 57,58,59, 62,63,68, 69,72,73, 74,75,78, 79,2,3,6, 7,8,9,12, 13,18,19, 22,23,24, 25,28,29 K6,K7,L6, L7,M6,N6, N7,P7,D7, E6,E7,F6, G6,G7,H6, H7,D1,E1, E2,F2,G1, G2,H1,H2, K1,K2,L1, L2,M2,N1 N2,P1 I/O- Synchronous Bidirectional Data I/O lines. As inputs, they feed into an on-chip data register that is triggered by the rising edge of CLK. As outputs, they deliver the data contained in the memory location specified by the addresses presented during the previous clock rise of the read cycle. The direction of the pins is controlled by OE. When OE is asserted LOW, the pins behave as outputs. When HIGH, DQs are placed in a three-state condition. VDD 15,41,65, 91 C4,J2,J4, R4,J6 Power Supply Power supply inputs to the core of the device. VSS 17,40,67, 90 D3,D5,E3, E5,F3,F5, H3,H5,K3, K5,M3,M5, N3,N5,P3, P5 Ground Ground for the core of the device. VDDQ 4,11,20, 27,54,61, 70,77 A1,A7,F1, F7,J1,J7, M1,M7,U1, U7 I/O Power Supply Power supply for the I/O circuitry. VSSQ 5,10,21,55 ,60,71,76 – I/O Ground Ground for the I/O circuitry. MODE 31 R3 Input- Static Selects Burst Order. When tied to GND selects linear burst sequence. When tied to VDD or left floating selects interleaved burst sequence. This is a strap pin and should remain static during device operation. Mode Pin has an internal pull-up. NC 14,16,38, 39,42,43, 66,51,80, 1,30 B1,B6,B7, C1,C7,D4, J3,J5,L4, R1,R5,R7, T1,T2,T6, U2,U3,U4, U5,U6,P6, D6,D2,P2 No Connects. Not Internally connected to the die. Pin Descriptions (continued) Name TQFP BGA I/O Description |
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