X76F101 Datasheet, PDF (1/17 Pages) Xicor Inc. – Secure SerialFlash

1K
X76F101
128 x 8 bit
Secure SerialFlash
FEATURES
• 64-bit Password Security
• One Array (112 Bytes) Two Passwords
—Read Password
—Write Password
• Programmable Passwords
• 32-bit Response to Reset (RST Input)
• 8 byte Sector Write mode
• 1MHz Clock Rate
• 2 wire Serial Interface
• Low Power CMOS
—3.0 to 5.5V operation
—Standby current Less than 1µA
—Active current less than 3 mA
• High Reliability Endurance:
—100,000 Write Cycles
• Data Retention: 100 years
• Available in:
—8 lead PDIP, SOIC, MSOP and ISO Card
—SmartCard Module
DESCRIPTION
The X76F101 is a Password Access Security Supervisor,
containing one 896-bit Secure SerialFlash array. Access
to the memory array can be controlled by two 64-bit
passwords. These passwords protect read and write
operations of the memory array.
The X76F101 features a serial interface and software
protocol allowing operation on a popular two wire bus.
The bus signals are a clock Input (SCL) and a
bidirectional data input and output (SDA). Access to the
device is controlled through a chip select (CS) input,
allowing any number of devices to share the same bus.
The X76F101 also features a synchronous response to
reset providing an automatic output of a hard-wired 32-bit
data stream conforming to the industry standard for
memory cards.
The X76F101 utilizes Xicor’s proprietary Direct Write^TM
cell, providing a minimum endurance of 100,000 cycles
and a minimum data retention of 100 years.
Functional Diagram
C^CS^S
S^SC^CL^L
S^SD^DA^A
I_IN_nT_teE_rR_faFA_ceCE
L^Lo^Og^Gic^IC
R^RS^STT
C^Ch^Hip^IPE^En^Na^Ab^Bl^Le^E
D^Da^At^Ta^AT^Tr^Ra^An^Ns^Sfe^Fr^ER
A^ARrr^Ra^Ay^YA^Ac^Cc^Ce^Es^Ss^S
E^En^Na^Ab^Bl^Le^E
VPE^{PaVAARneaSNIdrs}FSD_isfIW^PC_iwc^PAaO_a^AoT^sR_t^SriI^sdoOSD^wW_nN^AAoO_L^RLrrrOR^doRaD_gGA^yY_iI_cC
ISO^RER^Se^Es^Tet
R^REe^Ss^Pp^Oon^Ns^Se^E R^REe^Gg^Ii^Ss^Tte^Er^R
8K BYTE
SerialFlash ARRAY
Eras_Ae_RL_Ro_Ag_Yic₀
(PASSWORD PROTECTED)
11₃2₂B_By_Yte_TE
EESePriRalOFlaMshAArRraRyAY
ARRAY 1
(PASSWORD PROTECTED)
RETRY COUNTER
7025 FM 01
©Xicor, Inc. 1994, 1995, 1996 Patents Pending
7065 -1.1 4/17/98 T2/C0/D0 SH
1
Characteristics subject to change without notice