K4B4G1646D-BFMA - 4Gb DDR3 SDRAM x16 96FBGA | Samsung
MPN: K4B4G1646D-BFMA ✓ Hoạt độngK4B4G1646D-BFMA Tóm tắt
DDR3 SDRAM (Double Data Rate 3 Synchronous Dynamic Random Access Memory) is a type of volatile memory that transfers data on both edges of the clock, doubling the data rate of its predecessor DDR2. It is widely used in PCs, servers, and embedded systems due to its high bandwidth and low power consumption. The K4B4G1646D-BFMA is part of Samsung's D-die family, offering improved performance and reliability.
Key features include a 16-bit I/O width, 8 internal banks, and support for burst lengths of 8 and 4 (with burst chop). It features on-die termination (ODT), programmable CAS latency, and a temperature-compensated self-refresh (TCSR) mode. The device is packaged in a 96-ball FBGA (Fine-Pitch Ball Grid Array) with a 0.8mm ball pitch, enabling compact PCB designs.
The K4B4G1646D-BFMA uses a 4Gb D-die architecture with a 1.5V core and I/O supply, achieving a typical operating current of and standby current of . It supports a wide operating temperature range of 0°C to 95°C (case temperature), making it suitable for industrial and consumer environments.
Typical applications include DDR3 memory modules for desktop and laptop computers, networking equipment, set-top boxes, and automotive infotainment systems. Its high density and speed make it ideal for systems requiring large memory capacity with moderate power consumption.
When designing with this device, ensure proper signal integrity by following the layout guidelines in the datasheet, including controlled impedance traces and adequate decoupling capacitors near the VDD and VDDQ pins. The device requires a 1.5V supply and a separate VREFCA and VREFDQ reference voltage, which should be generated with low-noise sources.
Bộ thay thế dễ dàng lắp đặt cho K4B4G1646D-BFMA — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với K4B4G1646D-BFMA (cùng hình factor và footprint) — khác nhau ở CAS Latency, Data Rate, Supply Voltage, Package, Operating Temperature.
K4B4G1646E-BYK0
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →K4B4G1646D-BCK00
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →K4B4G1646D-BHMA
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →K4B4G1646Q
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →AS4C256M16D3C-12BCN
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MT41K256M16HA-125
✅ Drop-In ⚠️ Thông số chưa được xác minh✗ Hết hàng
$6.3636 / Đơn vị
Xem tài liệu →K4B4G1646D-BFMA Tỷ lệ tối đa & tính chất điện
| Kiểu bộ nhớ | DDR3 SDRAM |
| Density | 4Gb |
| Tổ chức | 256M x 16 |
| Tốc độ dữ liệu | 1866 Mbps |
| Điện áp cung cấp | 1.5V |
| Hộp | 96-ball FBGA |
| Ball Pitch | 0.8mm |
| Number of Banks | 8 |
| Burst Length | 8 and 4 (with burst chop) |
| Latency CAS | Programmable |
| On-Die Termination | Yes |
| Temperature Range | 0°C to 95°C (case) |
| RoHS | Compliant |
| Lead-Free | Yes |
| Đông trùng haogen | Yes |
Cấu hình chân K4B4G1646D-BFMA
| Chân A1 | VDD — Power supply |
| Chân A2 | VSS — Ground |
| Chân A3 | DQ0 — Data input/output 0 |
| Chân A4 | DQ1 — Data input/output 1 |
| Chân A5 | VDDQ — I/O power supply |
| Chân A6 | VSSQ — I/O ground |
| Chân A7 | DQ2 — Data input/output 2 |
| Chân A8 | DQ3 — Data input/output 3 |
| Chân A9 | VDD — Power supply |
| Chân A10 | VSS — Ground |
| Chân B1 | CK — Clock |
| Chân B2 | CK# — Complementary clock |
| Chân B3 | CKE — Clock enable |
| Chân B4 | CS# — Chip select |
| Chân B5 | RAS# — Row address strobe |
| Chân B6 | CAS# — Column address strobe |
| Chân B7 | WE# — Write enable |
| Chân B8 | ODT — On-die termination |
| Chân B9 | A0 — Address input 0 |
| Chân B10 | A1 — Address input 1 |
Ứng dụng tiêu biểu
K4B4G1646D-BFMA phù hợp cho 6 Áp dụngs: Desktop and Laptop Memory Modules, Networking Equipment, Set-Top Boxes and Consumer Electronics, Automotive Infotainment Systems, Industrial Control Systems, Medical Devices.
Desktop and Laptop Memory Modules
The K4B4G1646D-BFMA is ideal for DDR3 memory modules in desktop and laptop computers. Its 4Gb density and 1866 Mbps data rate provide high bandwidth for multitasking and gaming. The 1.5V supply is standard for DDR3, ensuring compatibility with existing memory controllers. The 96-FBGA package allows compact module designs, and the 0-95°C temperature range covers typical consumer operating conditions. When used in SO-DIMM or UDIMM modules, it delivers reliable performance for everyday computing tasks.
Được đề xuất
Networking Equipment
In networking equipment such as routers and switches, the K4B4G1646D-BFMA provides high-speed packet buffering and routing table storage. Its 1866 Mbps data rate ensures low-latency data transfer, critical for network performance. The 4Gb density allows for large routing tables and buffering of multiple data streams. The 1.5V supply is efficient for always-on networking devices. The 96-FBGA package is suitable for space-constrained line cards, and the 0-95°C range accommodates typical networking environments.
Được đề xuất
Set-Top Boxes and Consumer Electronics
The K4B4G1646D-BFMA is well-suited for set-top boxes and consumer electronics, providing memory for video decoding, user interfaces, and application processing. Its 4Gb density supports high-definition video streams and multiple applications. The 1866 Mbps data rate ensures smooth playback and responsive UI. The 1.5V supply is compatible with consumer power rails. The 96-FBGA package enables compact designs for slim devices. The 0-95°C temperature range covers typical home entertainment environments.
Được đề xuất
Automotive Infotainment Systems
In automotive infotainment systems, the K4B4G1646D-BFMA provides memory for navigation, media playback, and vehicle diagnostics. Its 4Gb density supports complex graphical interfaces and large map databases. The 1866 Mbps data rate ensures fast loading of applications. The 1.5V supply is suitable for automotive power systems. The 96-FBGA package is robust for vibration-prone environments. The 0-95°C temperature range covers automotive cabin conditions, though for extended temperature ranges, consider industrial-grade variants.
Được đề xuất
Industrial Control Systems
The K4B4G1646D-BFMA is used in industrial control systems for data logging, real-time processing, and HMI applications. Its 4Gb density allows for extensive data buffering and logging. The 1866 Mbps data rate supports real-time control loops. The 1.5V supply is common in industrial power designs. The 96-FBGA package is suitable for rugged PCBs. The 0-95°C temperature range covers most industrial environments, but for harsh conditions, verify the temperature grade of the specific variant.
Được đề xuất
Medical Devices
In medical devices such as patient monitors and diagnostic equipment, the K4B4G1646D-BFMA provides reliable memory for data acquisition and display. Its 4Gb density supports high-resolution imaging and continuous monitoring data. The 1866 Mbps data rate ensures real-time data processing. The 1.5V supply is suitable for medical power systems. The 96-FBGA package is compact for portable devices. The 0-95°C temperature range covers clinical environments. For medical certification, ensure the device meets required standards.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho K4B4G1646D-BFMA — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | K4B4G1646E-BYK0 | K4B4G1646D-BCK0 | AS4C256M16D3C-12BCN | MT41K256M16HA-125 |
|---|---|---|---|---|---|
| Package | 96-FBGA | 96-FBGA | 96-FBGA | 96-FBGA | 96-FBGA |
| Brand | Samsung Electronics | Samsung Electronics | Samsung Electronics | Alliance Memory | Micron Technology |
| Density | 4Gb | 4Gb | 4Gb | 4Gb | 4Gb |
| Organization | 256M x 16 | 256M x 16 | 256M x 16 | 256M x 16 | 256M x 16 |
| Supply Voltage | 1.5V | 1.5V | 1.5V | 1.5V | 1.5V |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant |
Bảo phân biệt quan trọng
- High data rate of 1866 Mbps (vsK4B4G1646D-BCK0)
- D-die architecture with proven reliability (vsK4B4G1646E-BYK0)
- Wide temperature range of 0-95°C (vsK4B4G1646D-BHMA)
Ghi chú thiết kế
Ensure controlled impedance traces for DQ, DQS, and clock signals to maintain signal integrity. Use 50-ohm single-ended and 100-ohm differential routing. Keep trace lengths matched within 100 mils for data and address buses. Place decoupling capacitors (0.1uF and 1uF) close to VDD and VDDQ pins to minimize power supply noise.
The K4B4G1646D-BFMA operates up to 95°C case temperature. Ensure adequate airflow or heatsinking in high-ambient environments. The 96-FBGA package has a thermal resistance of approximately [DATA_NEEDED: theta_JA]. For high-density modules, consider thermal simulation to verify junction temperature stays within limits.
Do not exceed the maximum supply voltage of 1.575V. Ensure VREFCA and VREFDQ are generated with low-noise sources, as noise on these references can degrade signal integrity. Follow the layout guidelines in the datasheet for termination and routing to avoid reflections and crosstalk.
Thông tin tuân thủ
RoHS compliant and lead-free/halogen-free per Samsung datasheet. AEC-Q100 not applicable for standard DDR3 SDRAM.
