
Renesas is a leading dual-port SRAM (DPRAM) supplier, bringing systems design experience together with high-performance circuit and multiport SRAM technology expertise to define synchronous and asynchronous dual-port and four-port memory products.
The Renesas synchronous dual-port SRAM devices are memory devices with clocked inputs and outputs for data, address, and control functions. These DPRAMs provide simultaneous access to a single static SRAM memory location from two buses with full synchronous operation on both ports.
Renesas DPRAM products feature simultaneous access capability, with a number of arbitration techniques available to the designer to prevent contention and system wait states. Semaphore token passing, software arbitration, and on-chip hardware arbitration enable the designer to select the most efficient DPRAM for the application.
The Renesas dual-port SRAMs come in industry-standard packages both Green (6/6 RoHS Compliant) and standard, 2.5V to 5V I/O voltages, and commercial, industrial, and military grades. Renesas is continually working to reduce the cost of high-performance dual-port SRAM solutions and will continue to be the leading provider of dual-port SRAM in the semiconductor industry.
Dual-port SRAM memory (also referred to as DPRAM) is a type of static random access memory that supports multiple, simultaneous reads or writes at different addresses within the memory. This is different than single-port memory which only allows one access at a time. The main benefit of this feature is higher performance since DPRAM allows for two memory cells to be read/written during each clock cycle instead of just one.
The transistor-level architecture of dual-port SRAM uses an eight-transistor basic memory cell, whereas single-port RAM uses a six-transistor basic memory cell. While this generally results in a larger die size, the Renesas synchronous SRAM solutions are optimized and offered in very compact packages.
Key parameters for choosing a dual-port SRAM include:
Core Voltage (V) |
Bus Width (bits) |
Density (Kb) |
Pkg. Code |
Interface |
I/O Type |
I/O Frequency (MHz) |
Temp. Range |
Architecture |
Organization |
Function |
Output Type |
105°C Max. Case Temp. |
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Part Number | |||||||||||||
128K x 8 Sync, Dual-Port RAM, Pipelined/Flow-Through | 5 | 8 | 1024 | PNG100 | Sync | 5.0 V TTL | 67 | -40 to 85°C | Dual-Port | 128K x 8 | Counters, Dual Clocks | Flowthrough, Pipelined | |
32K x 16 Sync, Dual-Port RAM, Pipelined/Flow-Through | 5 | 16 | 512 | PNG100 | Sync | 5.0 V TTL | 50 | -40 to 85°C | Dual-Port | 32K x 18 | Counters, Dual Clocks | Flowthrough, Pipelined | |
256K x 18 Sync, 3.3V/2.5V Dual-Port RAM, Interleaved I/O's | 2.5 | 18 | 4608 | BC256, BF208, BFG208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 200, 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 256K x 18 | Collision Detect, Counters, Dual Clocks, Interrupt, JTAG, Sleep Mode | Flowthrough, Pipelined | |
512K x 18 Sync, 3.3V/2.5V Dual-Port RAM, Interleaved I/O's | 2.5 | 18 | 9216 | BC256, BCG256, BF208, BFG208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 200, 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 512K x 18 | Collision Detect, Counters, Dual Clocks, Interrupt, JTAG, Sleep Mode | Flowthrough, Pipelined | |
128K x 18 Sync, 3.3V/2.5V Dual-Port RAM, Interleaved I/O's | 2.5 | 18 | 2304 | BC256, BF208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 200, 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 128K x 18 | Collision Detect, Counters, Dual Clocks, Interrupt, JTAG, Sleep Mode | Flowthrough, Pipelined | |
1024K x 36 Sync, 3.3V/2.5V Dual-Port RAM | 2.5 | 36 | 36864 | BPG256 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 1024K x 36 | Interrupt, Sleep Mode | Flowthrough, Pipelined | |
256K x 36 Sync, 3.3V/2.5V Dual-Port RAM, Interleaved I/O's | 2.5 | 36 | 9216 | BC256, BCG256, BF208, BFG208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 200, 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 256K x 36 | Collision Detect, Counters, Dual Clocks, Interrupt, JTAG, Sleep Mode | Flowthrough, Pipelined | |
512K x 36 Sync, 3.3V/2.5V Dual-Port RAM, Interleaved I/O's | 2.5 | 36 | 18432 | BC256, BCG256 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 512K x 36 | Counters, Dual Clocks, Interrupt, Sleep Mode | Flowthrough, Pipelined | |
64K x 36 Sync, 3.3V/2.5V Dual-Port RAM, Interleaved I/O's | 2.5 | 36 | 2304 | BC256, BF208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 200, 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 64K x 36 | Collision Detect, Counters, Dual Clocks, Interrupt, JTAG, Sleep Mode | Flowthrough, Pipelined | |
128K x 36 Sync, 3.3V/2.5V, Dual-Port RAM, Interleaved I/O's | 2.5 | 36 | 4608 | BC256, BCG256, BF208, BFG208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 200, 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 128K x 36 | Collision Detect, Counters, Dual Clocks, Interrupt, JTAG, Sleep Mode | Flowthrough, Pipelined | |
256K x 72 Sync, 3.3V/2.5V Dual-Port | 2.5 | 72 | 18432 | BBG324 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 133 | 0 to 70°C | Dual-Port | 256K x 72 | Collision Detect, Interrupt, Sleep Mode | Flowthrough, Pipelined | |
128K x 72 Sync, 3.3V/2.5V Dual-Port | 2.5 | 72 | 9216 | BBG324 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 128K x 72 | Collision Detect, Interrupt, Sleep Mode | Flowthrough, Pipelined | |
256K x 18 Sync, 3.3V Dual-Port RAM, Pipelined/Flow-Through, Interleaved I/O's | 3.3 | 18 | 4608 | BC256, BCG256, BF208, BFG208, PKG128 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 256K x 18 | Counters, Dual Clocks, JTAG | Flowthrough, Pipelined | |
32K x 18 Sync, 3.3V Dual-Port RAM, Pipelined, Interleaved I/O's | 3.3 | 18 | 576 | BC256, BCG256, BF208, PKG128 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 133, 100 | -40 to 85°C, 0 to 70°C | Dual-Port | 32K x 18 | Counters, Dual Clocks | Pipelined | |
64K x 18 Sync, 3.3V Dual-Port RAM, Pipelined, Interleaved I/O's | 3.3 | 18 | 1152 | BC256, BCG256, BF208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 133, 100 | -40 to 85°C, 0 to 70°C | Dual-Port | 64K x 18 | Counters, Dual Clocks | Pipelined | |
128K x 18 Sync, 3.3V Dual-Port RAM, Pipelined/Flow-Through, Interleaved I/O's | 3.3 | 18 | 2304 | BC256, BF208, BFG208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 128K x 36 | Counters, Dual Clocks, JTAG | Flowthrough, Pipelined | |
16K x 36 Sync, 3.3V Dual-Port, Pipelined, Interleaved I/O's | 3.3 | 36 | 576 | BC256, BF208, BFG208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 133, 100 | -40 to 85°C, 0 to 70°C | Dual-Port | 16K x 36 | Counters, Dual Clocks | Pipelined | |
32K × 36 Sync, 3.3V Dual-Port RAM, Pipelined, Interleaved I/O's | 3.3 | 36 | 1152 | BC256, BCG256, BF208, BFG208, DRG208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 133, 100 | -40 to 85°C, 0 to 70°C | Dual-Port | 32K x 36 | Counters, Dual Clocks | Pipelined | |
64K x 36 Sync, 3.3V Dual-Port RAM, Pipelined/Flow-Through, Interleaved I/O's | 3.3 | 36 | 2304 | BC256, BCG256, BF208, BFG208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 64K x 36 | Counters, Dual Clocks, JTAG | Flowthrough, Pipelined | |
128K x 36 Sync, 3.3V Dual-Port RAM, Pipelined/Flow-Through, Interleaved I/O's | 3.3 | 36 | 4608 | BC256, BCG256, BF208, BFG208 | Sync | 2.5 V LVTTL, 3.3 V LVTTL | 166, 133 | -40 to 85°C, 0 to 70°C | Dual-Port | 128K x 36 | Counters, Dual Clocks, JTAG | Flowthrough, Pipelined | |
32K x 8 Sync, 3.3V Dual-Port RAM, Pipelined/Flow-Through | 3.3 | 8 | 256 | PNG100 | Sync | 3.3 V LVTTL | 83 | 0 to 70°C | Dual-Port | 32K x 8 | Counters, Dual Clocks | Flowthrough, Pipelined | |
16K x 16 Sync, 3.3V Dual-Port RAM, Pipelined/Flow-Through | 3.3 | 16 | 256 | PKG128 | Sync | 3.3 V LVTTL | 50 | -40 to 85°C | Dual-Port | 16K x 16 | Counters, Dual Clocks | Flowthrough, Pipelined | |
32K x 16 Sync, 3.3V Dual-Port RAM, Pipelined/Flow-Through | 3.3 | 16 | 512 | PKG128 | Sync | 3.3 V LVTTL | 83 | -40 to 85°C | Dual-Port | 32K x 16 | Counters, Dual Clocks | Flowthrough, Pipelined | |
64K x 16 Sync, 3.3V Dual-Port Ram, Pipelined/Flow-Through | 3.3 | 16 | 1024 | PNG100 | Sync | 3.3 V LVTTL | 67 | -40 to 85°C | Dual-Port | 64K x 16 | Counters, Dual Clocks | Flowthrough, Pipelined |
Document title | Document type Type | Date Date |
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PDF 890 KB | Overview | |
PDF 603 KB | Overview | |
PDF 3.89 MB | Overview | |
PDF 93 KB | Guide | |
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