atmel公司的ata6617是一款系统级封装 (sip) 解决方案，在单个 qfn 5mm × 7mm 封装中整合了 ata6624 lin 系统 基础芯片 (system basis chip, sbc) 与 avr® 微控制器 (attiny167)，其中 ata6624 lin sbc 包含 lin 收发器、稳压器和看门狗。采用这种系统级封装解决方案，客户只需一块 ic 就能够创建完整的 lin 节点。ata6617具有出色的 emc 和 esd 性能，专为低成本 lin 从节点应用而优化，并包含一个功能强大的帶有集成硬件程序的 lin uart，可将 lin的代码量减少到约1 kb 闪存，并把中断发生減到最少。广泛用在汽车,工业,和医疗等领域.本文介绍了ata6617的主要特性,包括通用特性, lin-sbc 主要特性,和attiny167 mcu主要特性以及方框图和多种主/从lin应用电路.
microcontroller with lin transceiver, 5v regulator and watchdog
ata6617 is a system-in-package (sip) product, which is particularly suited for complete
lin-bus node applications. it supports highly integrated solutions for in-vehicle
lin networks. the first chip is the lin-system-basis-chip (lin-sbc) ata6624, which
has an integrated lin transceiver, a 5v regulator and a window watchdog. the second
chip is an automotive microcontroller from atmel®’s series of avr 8-bit
microcontroller with advanced risc architecture, the attiny167 with 16-kbytes flash
memory.
all pins of the lin system basis chip and the avr microcontroller are bonded out to
provide customers the same flexibility for their applications as they have when using
discrete parts.
图案.ata6617应用框图
ata6617 is a system-in-package (sip) product, which is particularly suited for complete
lin-bus node applications. it supports highly integrated solutions for in-vehicle lin networks. the first chip is the lin-system-basis-chip (lin-sbc) ata6624, which
has an integrated lin transceiver, a 5v regulator and a window watchdog. the second
chip is an automotive microcontroller from atmel®’s series of avr 8-bit microcontroller with advanced risc architecture, the attiny167 with 16-kbytes flash memory.
all pins of the lin system basis chip and the avr microcontroller are bonded out to provide customers the same flexibility for their applications as they have when using discrete parts.
ata6617通用特性:
single-package high performance, low power avr® 8-bit microcontroller with lin transceiver, 5v regulator and watchdog
very low current consumption in sleep mode
16 kbytes flash memory for application program (ata6617)
supply voltage up to 40v
operating voltage: 5v to 27v
temperature range: tcase –40°c to +125°c
qfn38, 5 mm x7 mm package
lin system-basis-chip block(lin-sbc)
the lin-sbc is a fully integrated lin transceiver, which complies with the lin 2.0 and
saej2602-2 specifications. it has a low-drop voltage regulator with a 5v/50 ma output and a window watchdog.
the lin-sbc is designed to handle the low-speed data communication in vehicles, e.g., in convenience electronics. improved slope control at the lin-driver ensures secure data
communication up to 20 kbaud. sleep mode and silent mode guarantee very low current
consumption.
lin-sbc 主要特性:
master and slave operation possible
supply voltage up to 40v
operating voltage vs = 5v to 27v
typically 10 μa supply current during sleep mode
typically 57 μa supply current in silent mode
linear low-drop voltage regulator:
normal, fail-safe, and silent mode
vcc = 5.0v ±2%
in sleep mode vcc is switched off
vcc undervoltage detection (4 ms reset time) and watchdog reset logical combined at open drain output nres
negative trigger input for watchdog
boosting the voltage regulator possible with an external npn transistor
lin physical layer according to lin 2.0 specification and saej2602-2
wake-up capability via lin-bus, wake pin, or kl_15 pin
inh output
