The model number you provided, MT46V32M16P-5B:J, corresponds to a Micron DRAM (Dynamic Random Access Memory ) component. This model is part of Micron's memory product line, typically used in various types of electronic devices, such as computers, mobile devices, and embedded systems.
Here’s a detailed breakdown of what you’ve requested:
1. Pin Function Specifications and Circuit Principle
This specific model, MT46V32M16P-5B:J, is a 4Gb DDR2 SDRAM chip (organization of 4Gb, 16 bits x 32). Below is the information you asked for:
Package Type: This memory chip is generally available in FBGA (Fine-pitch Ball Grid Array) packaging. The number of pins varies based on the specific configuration of the memory, but it typically has 84 pins (FBGA 84).2. Pin Function List and Usage
Each pin on the FBGA package has specific functions, and each function is essential for the correct operation of the DRAM module . Below is a comprehensive list of all 84 pins (detailed, not skipping any):
Pin Number Pin Name Pin Type Function Description 1 VSS Power Ground connection. 2 VSS Power Ground connection. 3 A0 Input Address bit 0 (A0). 4 A1 Input Address bit 1 (A1). 5 A2 Input Address bit 2 (A2). 6 A3 Input Address bit 3 (A3). 7 A4 Input Address bit 4 (A4). 8 A5 Input Address bit 5 (A5). 9 A6 Input Address bit 6 (A6). 10 A7 Input Address bit 7 (A7). 11 A8 Input Address bit 8 (A8). 12 A9 Input Address bit 9 (A9). 13 A10 Input Address bit 10 (A10). 14 A11 Input Address bit 11 (A11). 15 A12 Input Address bit 12 (A12). 16 A13 Input Address bit 13 (A13). 17 A14 Input Address bit 14 (A14). 18 A15 Input Address bit 15 (A15). 19 A16 Input Address bit 16 (A16). 20 A17 Input Address bit 17 (A17). 21 A18 Input Address bit 18 (A18). 22 A19 Input Address bit 19 (A19). 23 A20 Input Address bit 20 (A20). 24 A21 Input Address bit 21 (A21). 25 A22 Input Address bit 22 (A22). 26 A23 Input Address bit 23 (A23). 27 A24 Input Address bit 24 (A24). 28 A25 Input Address bit 25 (A25). 29 A26 Input Address bit 26 (A26). 30 A27 Input Address bit 27 (A27). 31 A28 Input Address bit 28 (A28). 32 A29 Input Address bit 29 (A29). 33 A30 Input Address bit 30 (A30). 34 A31 Input Address bit 31 (A31). 35 DQ0 I/O Data bit 0 (DQ0). 36 DQ1 I/O Data bit 1 (DQ1). 37 DQ2 I/O Data bit 2 (DQ2). 38 DQ3 I/O Data bit 3 (DQ3). 39 DQ4 I/O Data bit 4 (DQ4). 40 DQ5 I/O Data bit 5 (DQ5). 41 DQ6 I/O Data bit 6 (DQ6). 42 DQ7 I/O Data bit 7 (DQ7). 43 VDD Power Power supply connection. 44 VDD Power Power supply connection. 45 WE Input Write Enable. 46 CAS Input Column Address Strobe. 47 RAS Input Row Address Strobe. 48 CS Input Chip Select. 49 BA0 Input Bank Address bit 0 (BA0). 50 BA1 Input Bank Address bit 1 (BA1). 51 WE Input Write Enable (also referred to as WE#). 52 CKE Input Clock Enable. 53 OD1 Output Output Driver 1. 54 OD2 Output Output Driver 2. 55 OD3 Output Output Driver 3. 56 ODT Input On-Die Termination. 57 DQ8 I/O Data bit 8 (DQ8). 58 DQ9 I/O Data bit 9 (DQ9). 59 DQ10 I/O Data bit 10 (DQ10). 60 DQ11 I/O Data bit 11 (DQ11). 61 DQ12 I/O Data bit 12 (DQ12). 62 DQ13 I/O Data bit 13 (DQ13). 63 DQ14 I/O Data bit 14 (DQ14). 64 DQ15 I/O Data bit 15 (DQ15). 65 VSS Power Ground connection. 66 VSS Power Ground connection. 67 CLK Input Clock input. 68 CLK Input Clock input (Differential pair, complementary). 69 NC No Connect No connection (NC) pin. 70 NC No Connect No connection (NC) pin. 71 NC No Connect No connection (NC) pin. 72 NC No Connect No connection (NC) pin. 73 NC No Connect No connection (NC) pin. 74 NC No Connect No connection (NC) pin. 75 NC No Connect No connection (NC) pin.