Cortex-A5 Processor
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The ARM Cortex™-A5 processor is the most energy efficient, lowest cost processor capable of delivering the internet to the widest possible range of devices: from entry level smartphones, low cost handsets and smart mobile devices, to pervasive embedded, consumer and industrial devices.
Overview
The Cortex-A5 processor provides a high-value migration path for existing ARM926EJ-S™ and ARM1176JZ-S™ processor designs. It achieves better than ARM1176JZ-S performance, better power and energy efficiency than the ARM926EJ-S, and 100% Cortex-A compatibility.
These processors deliver high end features to power and cost sensitive applications, featuring
- Multiprocessing capability for scalable, energy efficient performance
- Optional floating point or NEON™ units for media and signal processing
- Full application compatibility with the Cortex-A8, Cortex-A9, and Classic ARM processors
- High performance memory system including caches and memory management unit
| ARM Cortex-A5 Performance, Power, and Area | ||
|---|---|---|
TSMC 40LP
| TSMC 40G | |
| Process Type/Nominal Voltage | low leakage, 1.1V | performance, 1.0V |
| Performance or Frequency Optimized | Frequency | Frequency |
| Frequency |
530~600 MHz (all RVt)
700MHz + with LVt
| >1GHz |
| Area excluding RAMs/cache | 0.27mm² | 0.27mm² |
Area with 16K/16K cache
| 0.53mm² | 0.53mm² |
Area with 16K/16K cache + NEON
| 0.68mm² | 0.68mm² |
| Dynamic Power | 0.12 mW/MHz | <0.08mW/MHz |
| Energy Efficiency | 13 DMIPS/mW | >20 DMIPS/mW |
Core area, frequency range, and power consumption are heavily dependent on process, libraries and optimizations.
The numbers quoted above are illustrative of synthesized cores using general purpose process technologies and ARM standard cell libraries and RAMs.
| Cortex-A5 | |
|---|---|
Architecture
| ARMv7-A Cortex |
| Dhrystone Performance | 1.57 DMIPS / MHz per core |
| Multicore |
1-4 cores
Single core version also available
|
| ISA Support |
|
| Memory Management | ARMv7 Memory Management Unit |
| Debug & Trace | CoreSight™ DK-A5 |
Applications
The Cortex-A5 is designed for applications which require virtual memory memory management for high level operating systems within an extremely low power profile.
Product Type
|
Application
|
|---|---|
Area and Energy Efficiency
The most energy efficient applications processor that delivers the full internet
Industry leading energy efficiency means the Cortex-A5 gets more work done per unit of energy, which means longer battery life and less heat dissipation in mobile devices.
The Cortex-A5 is the smallest Cortex-A processor.
Tiny size:
- Lowers manufacturing cost
- Allows more low cost integration
- Reduces leakage
Compatibility
The Cortex-A5 processor provides full instruction and feature compatibility with the higher performance Cortex-A8, Cortex-A9, and Cortex-A15 processors - all the way down to the operating system level. The Cortex-A5 processor also maintains backwards application compatibility with Classic ARM processors including the ARM926EJ-S, ARM1176JZ-S, and ARM7TDMI®.
