NT5CC128M16JR-EK Detailed explanation of pin function specifications and circuit principle instructions

The part number "NT5CC128M16JR-EK" is a type of DRAM (Dynamic Random- Access Memory ) produced by Nanya Technology, a semiconductor company specializing in memory module s.

Packaging Type:

The packaging type for this part number typically refers to a JEDEC standard DRAM module, such as BGA (Ball Grid Array) packaging. This packaging allows the memory to be mounted on printed circuit boards (PCBs) with numerous solder balls that connect to the PCB.

Pin Functions and Circuit Principle:

The NT5CC128M16JR-EK is likely a DRAM chip with 1 Gb density (128M x 16 bits), and the pin functions include Power , ground, data I/O, address, control signals, and Clock lines. Each of these pin functions plays a role in transferring data to and from the memory module.

Since the module contains a large number of pins, here’s a comprehensive breakdown of the functionality for each pin.

Pin Function Table:

Pin No. Pin Name Function Description 1 VDD Power supply pin for the core voltage. 2 VSS Ground pin for the core voltage. 3 DQ0 Data input/output, bit 0. 4 DQ1 Data input/output, bit 1. 5 DQ2 Data input/output, bit 2. 6 DQ3 Data input/output, bit 3. 7 DQ4 Data input/output, bit 4. 8 DQ5 Data input/output, bit 5. 9 DQ6 Data input/output, bit 6. 10 DQ7 Data input/output, bit 7. 11 DQ8 Data input/output, bit 8. 12 DQ9 Data input/output, bit 9. 13 DQ10 Data input/output, bit 10. 14 DQ11 Data input/output, bit 11. 15 DQ12 Data input/output, bit 12. 16 DQ13 Data input/output, bit 13. 17 DQ14 Data input/output, bit 14. 18 DQ15 Data input/output, bit 15. 19 A0 Address input, bit 0. 20 A1 Address input, bit 1. 21 A2 Address input, bit 2. 22 A3 Address input, bit 3. 23 A4 Address input, bit 4. 24 A5 Address input, bit 5. 25 A6 Address input, bit 6. 26 A7 Address input, bit 7. 27 A8 Address input, bit 8. 28 A9 Address input, bit 9. 29 A10 Address input, bit 10. 30 A11 Address input, bit 11. 31 A12 Address input, bit 12. 32 A13 Address input, bit 13. 33 A14 Address input, bit 14. 34 A15 Address input, bit 15. 35 CS Chip Select input, active low. 36 RAS Row Address Strobe, controls the row access in the memory array. 37 CAS Column Address Strobe, controls the column access in the memory array. 38 WE Write Enable, controls the write operation to the memory. 39 CKE Clock Enable, controls whether the clock is active. 40 CLK Clock input, used to synchronize operations. 41 ODT On-Die Termination, used for signal integrity on data lines. 42 VDDQ Power supply for I/O operations. 43 VSSQ Ground for I/O operations. Additional pins may exist based on the configuration of the DRAM and the specific packaging details.

Pin Function FAQ (20 Common Questions):

1. What is the function of the VDD pin in the NT5CC128M16JR-EK module?

The VDD pin supplies the core voltage for the DRAM chip.

2. Why is there a VSS pin on the NT5CC128M16JR-EK module?

The VSS pin serves as the ground reference for the core voltage.

3. What does the DQ pin represent in the NT5CC128M16JR-EK?

The DQ pins represent the data input/output lines of the memory module.

4. How do A0 to A15 pins function?

The A0 to A15 pins are used to address the rows and columns of the DRAM memory array.

5. What is the role of the CS pin?

The CS pin is the chip select input, which enables or disables the chip for operation.

6. What is the RAS pin used for in the NT5CC128M16JR-EK?

The RAS pin is the Row Address Strobe, responsible for activating a row in the memory.

7. What does the CAS pin control?

The CAS pin, or Column Address Strobe, controls which column is accessed in the memory array.

8. What is the function of the WE pin?

The WE pin enables or disables write operations to the DRAM.

9. How does the CKE pin work?

The CKE pin controls whether the clock is active or in a low-power state.

10. What is the CLK pin for?

The CLK pin provides the clock signal to synchronize all memory operations.

11. What is the purpose of the ODT pin?

The ODT pin enables or disables on-die termination for improved signal integrity.

12. What is the VDDQ pin?

The VDDQ pin provides power for the I/O circuits of the DRAM.

13. Why is the VSSQ pin needed?

The VSSQ pin is the ground reference for the I/O circuits.

14. What happens if the CS pin is not properly connected?

If the CS pin is not properly connected, the DRAM chip will not be selected for operation.

15. Can the NT5CC128M16JR-EK function without the CLK signal?

No, the CLK signal is necessary for synchronization and operation of the DRAM.

16. Is it possible to use the DQ pins for bidirectional data transfer?

Yes, the DQ pins are bidirectional for both reading and writing data to the memory.

17. Can the RAS and CAS pins be active at the same time?

No, RAS and CAS are never active at the same time in normal operation.

18. How is the memory refreshed in the NT5CC128M16JR-EK?

The memory is refreshed by periodic row access, controlled by the RAS and CAS signals.

19. Does the NT5CC128M16JR-EK require external termination resistors?

No, the ODT pin provides on-die termination, so external termination is typically not needed.

20. Can the NT5CC128M16JR-EK be used in a high-speed system?

Yes, it supports high-speed operation, depending on the specific clock frequencies and voltage levels used.

Conclusion:

This detailed breakdown of the pin functions for the NT5CC128M16JR-EK provides a comprehensive understanding of each pin's role and usage. Each pin is critical to the operation of the DRAM, ensuring reliable data storage and access.