NEC Electronics America announced the µPD78F8056, µPD78F8057, and µPD78F8058 microcontrollers (MCUs). The new 16-bit All Flash microcontrollers feature an embedded IEEE802.15.4-compliant 2.4-gigahertz (GHz) radio frequency (RF) transceiver for ZigBee RF4CE, which is an industrial standard for remote control for consumer electronics. The µPD78F8056, µPD78F8057, and µPD78F8058 MCUs are ideal for RF remote control and come in a 56-pin, 8 x 8-millimeter (mm) quad flat no-leads (QFN) package with flash memory sizes of 64 kilobytes (KB), 96 KB, and 128 KB.
Samples of the new chips are scheduled for availability in early Q1 2010 with mass production expected to begin during the first half of 2010. Suggested distribution resale pricing for 10,000-unit quantities begins at $4.20 each.
µPD78F8056, µPD78F8057, and µPD78F8058 Microcontrollers Features
- Power supply voltage: VDD = 1.8 to 3.6 V
- Oscillation frequency: 20 MHz
- ROM capacities: 64 KB to 128 KB Flash memory
- RAM capacities: 8 KB
- 56-pin plastic QFN package
- 78K0R CPU core
- On-chip 2.4 GHz RF transceiver
IEEE 802.15.4-2006 (modulation system: O-QPSK, spreading system: DSSS, data rate: 250 kbps)
- On-chip internal high-speed oscillation clocks
- 20 MHz Internal high-speed oscillation clock: 20 MHz(TYP.)
- 8 MHz Internal high-speed oscillation clock: 8 MHz(TYP.)
- 1 MHz Internal high-speed oscillation clock: 1 MHz(TYP.)
- On-chip single-power-supply flash memory (with prohibition of chip erase/block erase/writing function)
- Self-programming (with boot swap function/flash shield window function)
NEC Electronics America also offers a ZigBee RF4CE software development kit (SDK), which includes a ZigBee RF4CE stack library and a three-channel real-time sniffer, capable of simultaneously monitoring packets from the three RF4CE frequency channels; in addition to an evaluation board with NEC Electronics’ 128KB flash version of the MCU.
µPD78F8056, µPD78F8057, and µPD78F8058 Highlights
Lowest level of power consumption in the industry
The new MCUs combine NEC Electronics’ ultra-low-power 78K0R/Kx3-L 16-bit CPU and an ultra-low-power IEEE802.15.4-compliant 2.4GHz RF transceiver with hardware MAC functions. Realizing the lowest level of power consumption in the industry, current consumption is 18 milliamps (mA) during reception and 19 mA during transmission.
Supply voltage as low as 1.8V
NEC Electronics’ new MCUs with radio connectivity can operate down to a supply voltage as low as 1.8V. Network security often requires writing and erasing confidential data, such as frame count values, to protect against possible attack; however, Flash typically requires higher voltages to perform writing and erasing. The new MCUs, with an internal voltage booster, are capable of writing and erasing this data in Flash down to 1.8V, to provide secure support for operation even when supply voltage is limited.
Enhanced low-power radio supports RF4CE and other 802.15.4 wireless networking
This IEEE 802.15.4-compliant radio integrates a receiver, transmitter, voltage-controlled oscillator and a phase-locked loop. It uses an advanced radio architecture to minimize the external component count and power consumption, and the architecture provides hardware support for the IEEE802.15.4 MAC layer to reduce the software requirement of the upper layer stack, requiring less memory.
More info: NEC Electronics