M4A5-128/64-10YC LATTICE SEMICONDUCTOR, M4A5-128/64-10YC Datasheet - Page 8

• Manufacturer Part Number: M4A5-128/64-10YC
• Description: IC, MACH4 ISP EEPLD, PQFP100, 5.25V
• Manufacturer: LATTICE SEMICONDUCTOR
• Series: IspMACH 4Ar

Specifications of M4A5-128/64-10YC

• No. Of Macrocells: 128
• No. Of I/o's: 64
• Propagation Delay: 10ns
• Frequency: 100MHz
• Supply Voltage Range: 4.75V To 5.25V
• Operating Temperature Range: 0°C To +70°C

The Macrocell-I/O cell ratio is defined as the number of macrocells versus the number of I/O
cells internally in a PAL block (Tables 7 and 8).
The central switch matrix takes all dedicated inputs and signals from the input switch matrices
and routes them as needed to the PAL blocks. Feedback signals that return to the same PAL block
still must go through the central switch matrix. This mechanism ensures that PAL blocks in MACH
4 devices communicate with each other with consistent, predictable delays.
The central switch matrix makes a MACH 4 device more advanced than simply several PAL
devices on a single chip. It allows the designer to think of the device not as a collection of
blocks, but as a single programmable device; the software partitions the design into PAL blocks
through the central switch matrix so that the designer does not have to be concerned with the
internal architecture of the device.
8
Macrocell-I/O Cell
Ratio
Input Switch Matrix
Input Registers
Central Switch Matrix
Output Switch Matrix
Macrocell-I/O Cell
Ratio
Input Switch Matrix
Input Registers
Central Switch Matrix
Output Switch Matrix
Table 8. Architectural Summary of MACH 4A devices
Table 7. Architectural Summary of MACH 4 devices
M4A3-256/128, M4A5-256/128
M4-128N/64, M4LV-128N/64
M4A3-128/64, M4A5-128/64
M4A3-192/96, M4A5-192/96
M4-256/128, M4LV-256/128
M4A3-64/32, M4A5-64/32
M4A3-96/48, M4A5-96/48
M4-128/64, M4LV-128/64
M4-192/96, M4LV-192/96
M4-64/32, M4LV-64/32
M4-96/48, M4LV-96/48
M4A3-384
M4A3-512
MACH 4 Family
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
2:1
2:1
MACH 4A Devices
MACH 4A Devices
M4A3-256/160
M4A3-256/192
M4A3-32/32
M4A5-32/32
M4LV-32/32
M4-32/32
Yes
Yes
Yes
Yes
Yes
Yes
1:1
No
1:1
No