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参数资料
| 型号： | SST32HF1621C-90-4C-LS |
| 厂商： | SILICON STORAGE TECHNOLOGY INC |
| 元件分类： | 存储器 |
| 英文描述： | SPECIALTY MEMORY CIRCUIT, PBGA62 |
| 封装： | 8 X 10 MM, 1.40 MM HEIGHT, MO-210, LFBGA-62 |
| 文件页数： | 34/37页 |
| 文件大小： | 451K |
| 代理商： | SST32HF1621C-90-4C-LS |
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6
Preliminary Specifications
Multi-Purpose Flash Plus + SRAM ComboMemory
SST32HF1641 / SST32HF1681 / SST32HF3241 / SST32HF3281 / SST32HF6481
SST32HF1621C / SST32HF1641C / SST32HF3241C
2004 Silicon Storage Technology, Inc.
S71236-02-000
6/04
Product Identification Mode Exit/Reset
In order to return to the standard read mode, the Software
Product Identification mode must be exited. Exiting is
accomplished by issuing the Exit ID command sequence,
which returns the device to the Read operation. Please
note that the software reset command is ignored during an
internal Program or Erase operation. This command may
also be used to reset the device to Read mode after any
inadvertent transient condition that apparently causes the
device to behave abnormally, e.g. not read correctly. See
waveform and Figure 24 for a flowchart.
Security ID
The SST32HFx1/x1C devices offer a 256-bit Security ID
space. The Secure ID space is divided into two 128-bit seg-
ments - one factory programmed segment and one user
programmed segment. The first segment is programmed
and locked at SST with a random 128-bit number. The user
segment is left un-programmed for the customer to pro-
gram as desired.
To program the user segment of the Security ID, the user
must use the Security ID Word-Program command. To
detect end-of-write for the SEC ID, read the toggle bits. Do
not use Data# Polling. Once this is complete, the Sec ID
should be locked using the User Sec ID Program Lock-Out.
This disables any future corruption of this space. Note that
regardless of whether or not the Sec ID is locked, neither
Sec ID segment can be erased.
The Secure ID space can be queried by executing a three-
byte command sequence with Enter Sec ID command
(88H) at address 5555H in the last byte sequence. To exit
this mode, the Exit Sec ID command should be executed.
Refer to Table 5 for more details.
Design Considerations
SST recommends a high frequency 0.1 F ceramic capac-
itor to be placed as close as possible between VDD and
VSS, e.g., less than 1 cm away from the VDD pin of the
device. Additionally, a low frequency 4.7 F electrolytic
capacitor from VDD to VSS should be placed within 1 cm of
the VDD pin.
I/O Buffers
1236 B1.4
Address Buffers
DQ15 - DQ8
AMS-A0
WE
1#
SuperFlash
Memory
SRAM/
PSRAM
Control Logic
BES1#
BES2
BEF#
OE
1#
RESET#
WP#
Address Buffers
& Latches
LBS#
UBS#
DQ7 - DQ0
Notes: 1. For LS and L2S packages only:
WE# = WEF# and/or WES#
OE# = OEF# and/or OES#
FUNCTIONAL BLOCK DIAGRAM
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| SST42AAA | LATCHING INTERVAL-DELAY RELAY, DPDT, LATCHED, 120VDC (COIL), 3000mW (COIL), 0.1-10s, SOCKET MOUNT |
| SST42ADA | LATCHING INTERVAL-DELAY RELAY, DPDT, LATCHED, 120VDC (COIL), 3000mW (COIL), 1.8-180s, SOCKET MOUNT |
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| SST42AGA | LATCHING INTERVAL-DELAY RELAY, DPDT, LATCHED, 120VDC (COIL), 3000mW (COIL), 18-1800s, SOCKET MOUNT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SST32HF1622C | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:Multi-Purpose Flash Plus + SRAM ComboMemory |
| SST32HF1622C-70-4C-LFS | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:Multi-Purpose Flash Plus + SRAM ComboMemory |
| SST32HF1622C-70-4C-LFSE | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:Multi-Purpose Flash Plus + SRAM ComboMemory |
| SST32HF1622C-70-4C-LS | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:Multi-Purpose Flash Plus + SRAM ComboMemory |
| SST32HF1622C-70-4C-LSE | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:Multi-Purpose Flash Plus + SRAM ComboMemory |
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