寻找更快的CY8C4247LQI-BL483替代品

嗨，各位，
我正在为一个旧的8位处理器的计算机增加一些功能。我用先锋PROC/PSoC 4工具包开始了一个原型。基本上，我所在的地方，它几乎可以工作。48 MHz处理器只是一个毛发太慢而不能直接模拟RAM与处理器接口。我的意思是，我可以把数据从电脑写入PSoC，我可以读出数据，甚至可以从PSoC的RAM中运行机器语言代码……但是这个最后一个比特只在大约30秒的时间内循环通过几个字节的代码，直到某些东西没有及时准备好，事情就崩溃了。
一种选择是增加双端口RAM作为两个总线之间的接口，但是这增加了复杂性和成本。
我认为新的80MHz MCU将足够快，因为48 MHz相当接近。
所以，我所寻找的是关于是否有更新的设备与我所使用的设备非常相似的建议。我更喜欢带天线的小型天线或小型原型模块。主要的其他要求是能够与5V CMOS TTL总线接口。PROC和PSoC 4设备做到这一点。
谢谢，保罗



     以下为原文
  Hi folks,

I am working on a project to add some functionality to an old 8-bit processor-based computer. I started a prototype using the Pioneer PROC/PSOC 4 kit. Basically, where I'm at, is that it almost works. The 48Mhz processor is just a hair too slow to directly emulate RAM when interfacing with the processor. What I mean by that is that I can write data from the computer to the PSOC, and I can read data back out, and I can even run machine language code from the PSOC's RAM... but this last bit works for only about 30 seconds or so of looping through a few bytes of code before something isn't ready quite in time and things crash.

One option would be to add dual-port RAM as an interface between the two busses, but that add a lot of complexity and cost to my solution.

I think that the newer 80Mhz MCUs would be fast enough, since 48Mhz is pretty darn close.

So, what I'm looking for is recommendations on whether there are newer devices that are otherwise pretty similar to what I've been using. I'd prefer something with a BLE antenna on-board or in a small prototype module. The main other requirement is to be able to interface with a 5V CMOS TTL bus. The PROC and PSOC 4 devices do this well.

Thanks,
Paul