LC4256ZE-7TN100I Lattice, LC4256ZE-7TN100I Datasheet - Page 17
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LC4256ZE-7TN100I
Manufacturer Part Number
LC4256ZE-7TN100I
Description
CPLD - Complex Programmable Logic Devices 64 I/O ULT LW PWR 256MC 1.8V 7.5NS IND
Manufacturer
Lattice
Series
ispMACH®r
Datasheet
1.LC4064ZE-5TN100C.pdf
(60 pages)
Specifications of LC4256ZE-7TN100I
Memory Type
EEPROM
Number Of Macrocells
256
Maximum Operating Frequency
178.57 MHz
Delay Time
7.5 ns
Number Of Programmable I/os
64
Operating Supply Voltage
1.8 V
Supply Current
0.341 mA
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Package / Case
TQFP-100
Mounting Style
SMD/SMT
Supply Voltage (max)
1.9 V
Supply Voltage (min)
1.7 V
Programmable Type
CPLD
Voltage - Input
1.7 V ~ 1.9 V
Speed
7.5ns
Mounting Type
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LC4256ZE-7TN100I
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
Lattice Semiconductor
ispMACH 4000ZE Family Data Sheet
mated test equipment. This equipment can then be used to program ispMACH 4000ZE devices during the testing
of a circuit board.
User Electronic Signature
The User Electronic Signature (UES) allows the designer to include identification bits or serial numbers inside the
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device, stored in E
CMOS memory. The ispMACH 4000ZE device contains 32 UES bits that can be configured by
the user to store unique data such as ID codes, revision numbers or inventory control codes.
Security Bit
A programmable security bit is provided on the ispMACH 4000ZE devices as a deterrent to unauthorized copying of
the array configuration patterns. Once programmed, this bit defeats readback of the programmed pattern by a
device programmer, securing proprietary designs from competitors. Programming and verification are also
defeated by the security bit. The bit can only be reset by erasing the entire device.
Hot Socketing
The ispMACH 4000ZE devices are well-suited for applications that require hot socketing capability. Hot socketing a
device requires that the device, during power-up and down, can tolerate active signals on the I/Os and inputs with-
out being damaged. Additionally, it requires that the effects of I/O pin loading be minimal on active signals. The isp-
MACH 4000ZE devices provide this capability for input voltages in the range 0V to 3.0V.
Density Migration
The ispMACH 4000ZE family has been designed to ensure that different density devices in the same package have
the same pin-out. Furthermore, the architecture ensures a high success rate when performing design migration
from lower density parts to higher density parts. In many cases, it is possible to shift a lower utilization design tar-
geted for a high density device to a lower density device. However, the exact details of the final resource utilization
will impact the likely success in each case.
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