CY7C346B-35RMB

The 128 macrocells in the CY7C346B are divided into eight LABs, 16 per LAB and CY7C346B-35RMB is one of them. There are 256 expander product terms, 32 per LAB, to be used and shared by the macrocells within each LAB which is interconnected through the programmable interconnect array, allowing all signals to be routed throughout the chip.The speed and density of the CY7C346B makes it possible for the device to be used in a wide range of applications, from replacement of large amounts of 7400-series TTL logic, to complex controllers and multifunction chips. With greater than 25 times the functionality of 20-pin PLDs, the CY7C346B allows the replacement of over 50 TTL CY7C346B. By replacing large amounts of logic,the CY7C346B reduces board space, part count, and increases system reliability.

The CY7C346B  has many unique features: The first one is 128 macrocells in eight logic array blocks (LABs).The second one is 20 dedicated inputs, up to 64 bidirectional I/O pins.The third one is programmable interconnect array.The forth one is advanced 0.65-micron CMOS technology to increase performance.The fifth one is available in 84-pin CLCC, PLCC, and 100-pin PGA,PQFP,etc.

There are some maximum ratings about the CY7C346B.Storage temperature is -65 to 135.Ambient temperature with power applied is -65 to 135.Maximum junction temperature(under bias) is 150.Supply voltage to ground potential is -2.0 V to 7.0 V.DC output current per pin is -25 mA to +25 mA. DC input voltage is -2.0 V to 7.0 V.Otherwise,there are also some electrical characteristics(over the operating range).Output high voltage(VOH) is 2.4 V min when IOH is -4 mA DC.Output low voltage(VOL) is 0.45 V max when IOL is 8 mA DC.Input high voltage(VIH) is 2.0 V min and Vcc+0.3 V max.Input low voltage(VIL) is -0.3 V min and 0.8 V max. Input current(IIX) is -10 uA min and 10 uA max when Vi is equal to Vcc or ground.Output leakage current(Ioz) is -40 uA min and 40 uA max when Vo is euqal to vcc or ground.